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<title>Manuel Cárdenas' homepage</title>
<description>«Universidad de Sevilla, Dept. Geometría y Topología </description>
<language>en</language>
<copyright>Copyright 2012 Cárdenas</copyright>
<pubDate>Wed, 09 May 2012 09:12:03 GMT</pubDate>
<lastBuildDate>Wed, 09 May 2012 09:12:03 GMT</lastBuildDate>
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<item>
<title>Research</title>
<description>&lt;ul&gt;&lt;li&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://mcard.tiddlyspot.com/&quot; href=&quot;http://mcard.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Seminars with Dr. Dušan Repovš &lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Continuum&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Continuum&quot; href=&quot;null#Continuum&quot; class=&quot;externalLink null&quot;&gt;Continuum&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Problemas abiertos en Teoría de Contínuos&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Problemas abiertos en Teoría de Contínuos&quot; href=&quot;null#Problemas%20abiertos%20en%20Teor%C3%ADa%20de%20Cont%C3%ADnuos&quot; class=&quot;externalLink null&quot;&gt;Problemas abiertos en Teoría de Contínuos&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-groups&quot; href=&quot;null#P3R-groups&quot; class=&quot;externalLink null&quot;&gt;P3R-groups&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Open problems on P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Open problems on P3R-groups&quot; href=&quot;null#Open%20problems%20on%20P3R-groups&quot; class=&quot;externalLink null&quot;&gt;Open problems on P3R-groups&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Projective crossed modules&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Projective crossed modules&quot; href=&quot;null#Projective%20crossed%20modules&quot; class=&quot;externalLink null&quot;&gt;Projective crossed modules&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Published papers&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Published papers&quot; href=&quot;null#Published%20papers&quot; class=&quot;externalLink null&quot;&gt;Published papers&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Talks&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Talks&quot; href=&quot;null#Talks&quot; class=&quot;externalLink null&quot;&gt;Talks&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Work in progress&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Work in progress&quot; href=&quot;null#Work%20in%20progress&quot; class=&quot;externalLink null&quot;&gt;Work in progress&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;</description>
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<pubDate>Wed, 09 May 2012 09:12:02 GMT</pubDate>

</item>
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<title>Talks</title>
<description>&lt;ul&gt;&lt;li&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://personal.us.es/mcard/usindex_archivos/defensa.pdf&quot; href=&quot;http://personal.us.es/mcard/usindex_archivos/defensa.pdf&quot; class=&quot;externalLink&quot;&gt;Defensa de la tesis de Sevilla.&lt;/a&gt;&lt;/li&gt;&lt;li&gt;Jornadas Matemáticas: Geometrías. Sevilla, 20 de Marzo de 2001. &lt;a target=&quot;_blank&quot; title=&quot;External link to http://personal.us.es/mcard/usindex_archivos/sliding.pdf&quot; href=&quot;http://personal.us.es/mcard/usindex_archivos/sliding.pdf&quot; class=&quot;externalLink&quot;&gt;Problemas geométricos sobre finitud: soluciones algebraicas.&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://www.unirioja.es/dptos/dmc/luhernan/WebSiteSECA/index.html&quot; href=&quot;http://www.unirioja.es/dptos/dmc/luhernan/WebSiteSECA/index.html&quot; class=&quot;externalLink&quot;&gt;Seminario de Categorías y aplicaciones&lt;/a&gt;. Logroño 28 de Febrero y 1 de Marzo de 2003 Categorías Exactas pequeñas: &lt;a target=&quot;_blank&quot; title=&quot;External link to http://personal.us.es/mcard/usindex_archivos/hablando.pdf&quot; href=&quot;http://personal.us.es/mcard/usindex_archivos/hablando.pdf&quot; class=&quot;externalLink&quot;&gt;K-teoría, localización y control&lt;/a&gt;.&lt;/li&gt;&lt;li&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;RSME-AMS&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#RSME-AMS&quot; href=&quot;null#RSME-AMS&quot; class=&quot;externalLink null&quot;&gt;RSME-AMS&lt;/a&gt; meeting at Sevilla, 18-21 June 2003. &lt;a target=&quot;_blank&quot; title=&quot;External link to http://personal.us.es/mcard/usindex_archivos/sevmeet.pdf&quot; href=&quot;http://personal.us.es/mcard/usindex_archivos/sevmeet.pdf&quot; class=&quot;externalLink&quot;&gt;Properly 3-realizable groups&lt;/a&gt;.&lt;/li&gt;&lt;li&gt;990th AMS Meeting at Binghamton University, October 11-12, 2003. &lt;a target=&quot;_blank&quot; title=&quot;External link to http://personal.us.es/mcard/usindex_archivos/bingtalk.pdf&quot; href=&quot;http://personal.us.es/mcard/usindex_archivos/bingtalk.pdf&quot; class=&quot;externalLink&quot;&gt;Controlled Exact Categories&lt;/a&gt;.&lt;/li&gt;&lt;li&gt;Institute of Mathematics, Phisics and Mechanics, Ljubljana (Slovenja), September 9, 2005. &lt;a target=&quot;_blank&quot; title=&quot;External link to http://personal.us.es/mcard/usindex_archivos/ljubljana.pdf&quot; href=&quot;http://personal.us.es/mcard/usindex_archivos/ljubljana.pdf&quot; class=&quot;externalLink&quot;&gt;Semistability does not imply proper $3$-realizability&lt;/a&gt;.&lt;/li&gt;&lt;/ul&gt;</description>
<category>framedLinks</category>
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<pubDate>Wed, 09 May 2012 09:11:43 GMT</pubDate>

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<title>Published papers</title>
<description>Published papers:&lt;br&gt;&lt;ul&gt;&lt;li&gt;&quot;Homology decompositions in proper homotopy&quot;, R. Ayala, M. Cárdenas, and A. Quintero, Math. Japon. 42 (1995), no. 3, 443-457. MR 96k:55008&lt;/li&gt;&lt;li&gt;&quot;On the Karoubi filtration of a category&quot;. M. Cárdenas and E. K. Pedersen, &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;K-Theory&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#K-Theory&quot; href=&quot;null#K-Theory&quot; class=&quot;externalLink null&quot;&gt;K-Theory&lt;/a&gt; 12 (1997), no. 2, 165-191. MR 98g:18012&lt;/li&gt;&lt;li&gt;&quot;Minimal covers of open manifolds with half-spaces and the proper l-s category of product spaces&quot;. M. Cárdenas, F.F. Lasheras and A. Quintero, B. Belg. Math. &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Soc-Sim&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Soc-Sim&quot; href=&quot;null#Soc-Sim&quot; class=&quot;externalLink null&quot;&gt;Soc-Sim&lt;/a&gt;. 9 (2002), 419-431.&lt;/li&gt;&lt;li&gt;&quot;Embedding Proper Homotoy Types&quot;. M. Cárdenas, T. Férnandez, F.F. Lasheras and A. Quintero, Coll. Math. vol.95 (2003) no.1, 1-20.&lt;/li&gt;&lt;li&gt;&quot;An elementary Approach to the Projective Dimension in Proper Homotopy Theory&quot;, R. Ayala, M. Cárdenas, F. Muro and A. Quintero, Comm. in Alg. vol. 31 No. 12, pp. 5995-6017, 2003.&lt;/li&gt;&lt;li&gt;&quot;Direct products and properly 3-realizable groups&quot;. M. Cárdenas, F.F. Lasheras and R. Roy, Bull. Austral. Math. Soc. Vol. 70 (2004) no. 2, Pages 199-205.&lt;/li&gt;&lt;li&gt;&quot;On properly $3$-realizable groups&quot;. M. Cárdenas and F.F. Lasheras, Topology and its Applications, vol. 153, Issues 2-3, 1 September 2005, pp. 337-349 .&lt;/li&gt;&lt;li&gt;&quot;Properly $3$-realizable groups&quot;. R. Ayala, M. Cárdenas, F.F. Lasheras and A. Quintero, Proc. Amer. Math. Soc. 133 (2005), 1527-1535.&lt;/li&gt;&lt;li&gt;&quot;Properly 3-realizable goups: a survey&quot;. M. Cárdenas and F.F. Lasheras, CONM book series Proceedings of the Conference on Geometric Group Theory and Geometric Methods in Group Theory edited by S. Cleary, J. Taback, M. Elder, J. Burillo, and E. Ventura.&lt;/li&gt;&lt;li&gt;&quot;The proper &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;L-S&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#L-S&quot; href=&quot;null#L-S&quot; class=&quot;externalLink null&quot;&gt;L-S&lt;/a&gt; category of Whitehead manifolds &quot;, M. Cárdenas, F. Muro and A. Quintero, Topology and its Applications, Volume 153, Issue 4, 1 November 2005, Pages 557-579&lt;/li&gt;&lt;li&gt;&quot;Proper &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;L-S&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#L-S&quot; href=&quot;null#L-S&quot; class=&quot;externalLink null&quot;&gt;L-S&lt;/a&gt; category, fundamental pro-groups and 2-dimensional proper co-H-spaces &quot;, M. Cárdenas, F. Muro and A. Quintero, Topology and its Applications, Volume 153, Issue 4, 1 November 2005, Pages 557-579&lt;/li&gt;&lt;li&gt;&quot;Amalgamated products and properly 3-realizable groups &quot;, M. Cárdenas, F.F. Lasheras, A. Quintero and D. Repovs, Journal of Pure and Applied Algebra, Vol. 208, Issue 1, January 2007, Pages 293-296.&lt;/li&gt;&lt;li&gt;&quot;Properly 3-realizable groups &quot;, M. Cárdenas, F.F. Lasheras and A. Quintero, Fundamentalnaya i Prikladnaya Matematika (Fundamental and Applied mathematics) 2005, Vol. 11, num.4 [95-103]&lt;/li&gt;&lt;li&gt;&quot;One-relator groups and proper 3-realizability&quot;, M. Cárdenas, F.F. Lasheras, A. Quintero and D. Repovs, Rev. Mat. Iberoamericana 25 (2009), no. 2, 739–756.&lt;/li&gt;&lt;/ul&gt;</description>
<link>null#%5B%5BPublished%20papers%5D%5D</link>
<pubDate>Wed, 09 May 2012 09:00:45 GMT</pubDate>

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<title>Data</title>
<description>Professor&lt;br&gt;Ph.D. 1997 Binghamton University, 2001 Universidad de Sevilla&lt;br&gt;&lt;h3&gt;Areas of interest:&lt;/h3&gt;Algebraic and geometric topology focused on algebraic K-theory and proper homotopy theory.&lt;br&gt;&lt;h3&gt;Address information&lt;/h3&gt;Dpto. Geometría y Topología&lt;br&gt;Facultad de Matemáticas&lt;br&gt;Universidad de Sevilla&lt;br&gt;P.O.Box 1160&lt;br&gt;41080-Sevilla&lt;br&gt;Spain&lt;br&gt;Phone: +34 954557966&lt;br&gt;Fax: +34 954557970&lt;br&gt;Email address: m.cardenas.escudero&quot;at&quot;gmail.com&lt;br&gt;&lt;span tiddler=&quot;Tutorías&quot; refresh=&quot;content&quot;&gt;&lt;h3&gt;Horario de tutorías 2011-12&lt;/h3&gt;&lt;ul&gt;&lt;li&gt; Primer cuatrimestre: sin docencia , previa cita en mcard&quot;at&quot;us.es&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre hasta el 22/06/12: martes de 11:30 a 13:00, miércoles de 9:30 a 12:00, jueves de 10:00 a 12:00 y viernes de 11:30 a 12:00.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre del 22/06/12 al final del cuatrimestre: martes y miércoles de 9:30 a 12:30 &lt;/li&gt;&lt;/ul&gt;&lt;h3&gt;Cursos 2011-12:&lt;/h3&gt;&lt;ul&gt;&lt;li&gt; Segundo cuatrimestre: &lt;a target=&quot;_blank&quot; title=&quot;External link to http://intro2gt.tiddlyspot.com/&quot; href=&quot;http://intro2gt.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Introduccion a la Topología Geométrica&lt;/a&gt;.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre: &lt;a target=&quot;_blank&quot; title=&quot;External link to http://ehcuds.tiddlyspot.com/&quot; href=&quot;http://ehcuds.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Elementos de la Homología Clásica (Grupo B)&lt;/a&gt;.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre: &lt;a target=&quot;_blank&quot; title=&quot;External link to http://udsth0910.tiddlyspot.com/&quot; href=&quot;http://udsth0910.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Teoría de Homotopía&lt;/a&gt;.&lt;/li&gt;&lt;/ul&gt;&lt;/span&gt;&lt;br&gt;&lt;span tiddler=&quot;GoogleCalendar&quot; refresh=&quot;content&quot;&gt;&lt;h3&gt;Calendario de Actividades&lt;/h3&gt;&lt;span&gt;&lt;div align=&quot;center&quot;&gt;&lt;iframe src=&quot;https://www.google.com/calendar/embed?showTitle=0&amp;amp;mode=WEEK&amp;amp;height=300&amp;amp;wkst=2&amp;amp;bgcolor=%23FFFFFF&amp;amp;src=9j9a0a1iqgafvpq9sboahltdtc%40group.calendar.google.com&amp;amp;color=%23B1440E&amp;amp;src=hgnhn8qrt20ih333tummrmi7ps%40group.calendar.google.com&amp;amp;color=%230D7813&amp;amp;src=m.cardenas.escudero%40gmail.com&amp;amp;color=%232952A3&amp;amp;src=es.spain%23holiday%40group.v.calendar.google.com&amp;amp;color=%23A32929&amp;amp;src=p%23weather%40group.v.calendar.google.com&amp;amp;color=%2388880E&amp;amp;ctz=Europe%2FMadrid&quot; style=&quot;border-width: 0pt;&quot; frameborder=&quot;0&quot; height=&quot;300&quot; scrolling=&quot;no&quot; width=&quot;500&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;/span&gt;&lt;/span&gt;&lt;br&gt;&lt;hr class=&quot;slideSeparator&quot;&gt;&lt;strong&gt;Note:&lt;/strong&gt; These pages are &lt;span style=&quot;color: red;&quot;&gt;UTF-8&lt;/span&gt; encoded and best viewed by &lt;a target=&quot;_blank&quot; title=&quot;External link to http://www.math.union.edu/~dpvc/jsMath/download/jsMath-fonts.html&quot; href=&quot;http://www.math.union.edu/%7Edpvc/jsMath/download/jsMath-fonts.html&quot; class=&quot;externalLink&quot;&gt;downloading&lt;/a&gt; the jsMath fonts. Any inquiries to &lt;strong&gt;mcard&lt;/strong&gt; at &lt;strong&gt;us.es&lt;/strong&gt; or &lt;strong&gt;m.cardenas.escudero&lt;/strong&gt; at &lt;strong&gt;gmail.com&lt;/strong&gt; .&lt;br&gt;You still may access my old &lt;a target=&quot;_blank&quot; title=&quot;External link to http://personal.us.es/mcard/index.php&quot; href=&quot;http://personal.us.es/mcard/index.php&quot; class=&quot;externalLink&quot;&gt;homepage&lt;/a&gt;.&lt;br&gt;&lt;hr class=&quot;slideSeparator&quot;&gt;</description>
<category>clase</category>
<category>framedLinks</category>
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<pubDate>Wed, 09 May 2012 08:52:39 GMT</pubDate>

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<title>MainMenu</title>
<description>&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Data&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Data&quot; href=&quot;null#Data&quot; class=&quot;externalLink null&quot;&gt;Índice&lt;/a&gt;&lt;br&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Docencia&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Docencia&quot; href=&quot;null#Docencia&quot; class=&quot;externalLink null&quot;&gt;Docencia&lt;/a&gt;&lt;br&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Novedades&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Novedades&quot; href=&quot;null#Novedades&quot; class=&quot;externalLink null&quot;&gt;Novedades&lt;/a&gt;&lt;br&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Research&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Research&quot; href=&quot;null#Research&quot; class=&quot;externalLink null&quot;&gt;Research&lt;/a&gt;&lt;br&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;Multimedia&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#Multimedia&quot; href=&quot;null#Multimedia&quot; class=&quot;externalLink null&quot;&gt;Multimedia&lt;/a&gt;&lt;br&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to tw.xml&quot; href=&quot;tw.xml&quot; class=&quot;externalLink&quot;&gt;RSS&lt;/a&gt;&lt;br&gt;</description>
<link>null#MainMenu</link>
<pubDate>Tue, 24 Jan 2012 10:39:00 GMT</pubDate>

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<title>GoogleCalendar</title>
<description>&lt;h3&gt;Calendario de Actividades&lt;/h3&gt;&lt;span&gt;&lt;div align=&quot;center&quot;&gt;&lt;iframe src=&quot;https://www.google.com/calendar/embed?showTitle=0&amp;amp;mode=WEEK&amp;amp;height=300&amp;amp;wkst=2&amp;amp;bgcolor=%23FFFFFF&amp;amp;src=9j9a0a1iqgafvpq9sboahltdtc%40group.calendar.google.com&amp;amp;color=%23B1440E&amp;amp;src=hgnhn8qrt20ih333tummrmi7ps%40group.calendar.google.com&amp;amp;color=%230D7813&amp;amp;src=m.cardenas.escudero%40gmail.com&amp;amp;color=%232952A3&amp;amp;src=es.spain%23holiday%40group.v.calendar.google.com&amp;amp;color=%23A32929&amp;amp;src=p%23weather%40group.v.calendar.google.com&amp;amp;color=%2388880E&amp;amp;ctz=Europe%2FMadrid&quot; style=&quot;border-width: 0pt;&quot; frameborder=&quot;0&quot; height=&quot;300&quot; scrolling=&quot;no&quot; width=&quot;500&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;/span&gt;</description>
<link>null#GoogleCalendar</link>
<pubDate>Tue, 24 Jan 2012 10:35:00 GMT</pubDate>

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<title>Tutorías</title>
<description>&lt;h3&gt;Horario de tutorías 2011-12&lt;/h3&gt;&lt;ul&gt;&lt;li&gt; Primer cuatrimestre: sin docencia , previa cita en mcard&quot;at&quot;us.es&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre hasta el 22/06/12: martes de 11:30 a 13:00, miércoles de 9:30 a 12:00, jueves de 10:00 a 12:00 y viernes de 11:30 a 12:00.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre del 22/06/12 al final del cuatrimestre: martes y miércoles de 9:30 a 12:30 &lt;/li&gt;&lt;/ul&gt;&lt;h3&gt;Cursos 2011-12:&lt;/h3&gt;&lt;ul&gt;&lt;li&gt; Segundo cuatrimestre: &lt;a target=&quot;_blank&quot; title=&quot;External link to http://intro2gt.tiddlyspot.com/&quot; href=&quot;http://intro2gt.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Introduccion a la Topología Geométrica&lt;/a&gt;.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre: &lt;a target=&quot;_blank&quot; title=&quot;External link to http://ehcuds.tiddlyspot.com/&quot; href=&quot;http://ehcuds.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Elementos de la Homología Clásica (Grupo B)&lt;/a&gt;.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre: &lt;a target=&quot;_blank&quot; title=&quot;External link to http://udsth0910.tiddlyspot.com/&quot; href=&quot;http://udsth0910.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Teoría de Homotopía&lt;/a&gt;.&lt;/li&gt;&lt;/ul&gt;</description>
<category>clase</category>
<link>null#Tutor%C3%ADas</link>
<pubDate>Tue, 24 Jan 2012 10:35:00 GMT</pubDate>

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<title>Docencia</title>
<description>&lt;ul&gt;&lt;li&gt; &lt;a target=&quot;_blank&quot; title=&quot;External link to http://ehcuds.tiddlyspot.com/&quot; href=&quot;http://ehcuds.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Elementos de la Homología Clásica&lt;/a&gt;&lt;/li&gt;&lt;li&gt; &lt;a target=&quot;_blank&quot; title=&quot;External link to http://intro2gt.tiddlyspot.com/&quot; href=&quot;http://intro2gt.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Introducción a la Topología Geométrica&lt;/a&gt;&lt;/li&gt;&lt;li&gt; &lt;a target=&quot;_blank&quot; title=&quot;External link to http://personal.us.es/mcard/index.php?option=com_content&amp;amp;view=category&amp;amp;layout=blog&amp;amp;id=46&amp;amp;Itemid=64&quot; href=&quot;http://personal.us.es/mcard/index.php?option=com_content&amp;amp;view=category&amp;amp;layout=blog&amp;amp;id=46&amp;amp;Itemid=64&quot; class=&quot;externalLink&quot;&gt;Topología&lt;/a&gt;&lt;/li&gt;&lt;li&gt; Introducción a la Topología Poliedral&lt;/li&gt;&lt;li&gt; &lt;a target=&quot;_blank&quot; title=&quot;External link to http://udsth0910.tiddlyspot.com/&quot; href=&quot;http://udsth0910.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Teoría de Homotopía&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;span tiddler=&quot;Tutorías&quot; refresh=&quot;content&quot;&gt;&lt;h3&gt;Horario de tutorías 2011-12&lt;/h3&gt;&lt;ul&gt;&lt;li&gt; Primer cuatrimestre: sin docencia , previa cita en mcard&quot;at&quot;us.es&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre hasta el 22/06/12: martes de 11:30 a 13:00, miércoles de 9:30 a 12:00, jueves de 10:00 a 12:00 y viernes de 11:30 a 12:00.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre del 22/06/12 al final del cuatrimestre: martes y miércoles de 9:30 a 12:30 &lt;/li&gt;&lt;/ul&gt;&lt;h3&gt;Cursos 2011-12:&lt;/h3&gt;&lt;ul&gt;&lt;li&gt; Segundo cuatrimestre: &lt;a target=&quot;_blank&quot; title=&quot;External link to http://intro2gt.tiddlyspot.com/&quot; href=&quot;http://intro2gt.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Introduccion a la Topología Geométrica&lt;/a&gt;.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre: &lt;a target=&quot;_blank&quot; title=&quot;External link to http://ehcuds.tiddlyspot.com/&quot; href=&quot;http://ehcuds.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Elementos de la Homología Clásica (Grupo B)&lt;/a&gt;.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre: &lt;a target=&quot;_blank&quot; title=&quot;External link to http://udsth0910.tiddlyspot.com/&quot; href=&quot;http://udsth0910.tiddlyspot.com/&quot; class=&quot;externalLink&quot;&gt;Teoría de Homotopía&lt;/a&gt;.&lt;/li&gt;&lt;/ul&gt;&lt;/span&gt;&lt;br&gt;</description>
<category>clase</category>
<link>null#Docencia</link>
<pubDate>Tue, 24 Jan 2012 10:07:00 GMT</pubDate>

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<title>SiteTitle</title>
<description>Manuel Cárdenas' homepage</description>
<link>null#SiteTitle</link>
<pubDate>Tue, 24 Jan 2012 10:04:00 GMT</pubDate>

</item>
<item>
<title>P3R-groups</title>
<description>Here is a brief &lt;a target=&quot;_blank&quot; title=&quot;External link to http://personal.us.es/mcard/jp3r/p3rhtml.html&quot; href=&quot;http://personal.us.es/mcard/jp3r/p3rhtml.html&quot; class=&quot;externalLink&quot;&gt;presentation&lt;/a&gt;.</description>
<link>null#P3R-groups</link>
<pubDate>Tue, 29 Nov 2011 11:13:00 GMT</pubDate>

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<item>
<title>Continuum</title>
<description>Resultados previos.&lt;br&gt;&lt;ul&gt;&lt;li&gt;Un continuo se dice descomponible si existen $A,B\subset X$ con $X=A\cup B$ pero $X\neq A, B$.&lt;/li&gt;&lt;li&gt;Un continuo es hereditariamente indescomponible si cada subcontinuo es indescomponible: si $C(X)$ es unicamente arcoconexo o equivalentemente si $P,Q\subseteq X$ con $P\cap Q\neq\emptyset$ entonces bien $P\subseteq Q$ o bien $Q\subseteq P$.&lt;/li&gt;&lt;li&gt;Un continuo se dice unicoherente si $X=A\cup B$ entonces $A\cap B$ es conexo.&lt;/li&gt;&lt;li&gt;Un dendroide es un continuo unicoherente y arcoconexo. En particular, son hereditariamente descomponible. Existe un dendroide suave universal.&lt;/li&gt;&lt;/ul&gt;&lt;br&gt;Pseudoarco.&lt;br&gt;&lt;ul&gt;&lt;li&gt;$X$ se dice encadenable si para cada $\epsilon&amp;gt;0$ existe una cadena $\mathcal C$ con $mesh\mathcal C$ tendiendo a $0$ con $X=\bigcup_{C\in\mathcal C} C$.&lt;/li&gt;&lt;/ul&gt;&lt;br&gt;&lt;br&gt;Aplicaciones confluentes.&lt;br&gt;&lt;ul&gt;&lt;li&gt;$f:X\to Y$ se dice confluente si para todo $Q\subseteq Y$ y $C$ componente de $f^{-1}(Q)$ entonces $f(C)=Q$.&lt;/li&gt;&lt;li&gt;Ser confluente es una generalizacion de aplicacion abierta y de aplicacion monotona. Recuerda monotona es que $f^{-1}(x)$ es conexo para cada $x\in Y$.&lt;/li&gt;&lt;li&gt;Entre localmente conexos las confluentes son composiciones de abiertas y monotonas.&lt;/li&gt;&lt;li&gt;Si $X$ es hereditariamente descomponible y $f$ es confluente entnces $Y$ es tambien hereditariamente descomponible.&lt;/li&gt;&lt;/ul&gt;&lt;br&gt;Retractos absolutos y algunas clases de continuos.&lt;br&gt;Sea $\mathcal K$ una clase de e.t., no necesariamente compactos, diremos que $X\in AR(\mathcal K)$ si&lt;br&gt;&lt;ul&gt;&lt;li&gt; $X\in\mathcal K$;&lt;/li&gt;&lt;li&gt; Ppara todo $Y\in\mathcal K$ con $X\subset Y$ cerrado entonces existe una retraccion $r:Y\to X$.&lt;/li&gt;&lt;/ul&gt;&lt;br&gt;Algunos ejemplos y propiedades para $\mathcal M$ la categoria de espacios metricos:&lt;br&gt;&lt;ul&gt;&lt;li&gt; $[0,1]\in AR(\mathcal M)$;&lt;/li&gt;&lt;li&gt; $AR(\mathcal M)$ es cerrado bajo productos, asi $[0,1]^n, [0,1]^\infty\in AR(\mathcal M)$.&lt;/li&gt;&lt;li&gt; Si $r:X\to Y$ es una retraccion con $X\in AR(\mathcal M)$ entonces $Y\in AR(\mathcal M)$ tambien.&lt;/li&gt;&lt;li&gt; Sabemos que los espacios en $AR(\mathcal M)$ son extensores en el sentido de que las aplicaciones se pueden extender desde el cerrado a todo el conjunto ambiente.&lt;/li&gt;&lt;/ul&gt;&lt;br&gt;Queremos estudiar estas propiedades para las siguientes clases:&lt;br&gt;&lt;ul&gt;&lt;li&gt; $D_0$ dendritas,&lt;/li&gt;&lt;li&gt; $D$ dendroides,&lt;/li&gt;&lt;li&gt; $\lambda D$ $\lambda$-dendroides,&lt;/li&gt;&lt;li&gt; $TL$ tipo arbol,&lt;/li&gt;&lt;li&gt; $HU$ hereditariamente unicoherentes.&lt;/li&gt;&lt;/ul&gt; Se tiene que $D_0\subset D\subset D\subset \lambda D\subset TL\subset HU$.&lt;br&gt;&lt;br&gt;Teorema&lt;br&gt; Si $\mathcal K$ es funcionalmente unionable(?) entonces $X\in AR(\mathcal K)$ sii para todo $A,B\in K$ con $A\subset B$ cerrado toda aplicacion $f:A\to X$ puede ser extendida a $f^*:B\to X$.&lt;br&gt;&lt;br&gt;Teorema&lt;br&gt; Si $\mathcal K$ es unionable entonces el retracto de un elemento en $AR(\mathcal K)$ esta en $AR(\mathcal K)$.&lt;br&gt;&lt;br&gt;Definicion&lt;br&gt; La clase $\mathcal K$ se dice unionable sii para todo $X,Y\in\mathcal K$ con $X\cap Y\in\mathcal K$ se tiene que $X\cup Y\in\mathcal K$.&lt;br&gt;&lt;br&gt;Definicion&lt;br&gt; Diremos que $X$ es pointwise $w$-unionable si dados $K$, $p$ y $p_n\to p$&lt;br&gt;&lt;br&gt;Definicion&lt;br&gt; La clase $\mathcal K$ se dice funcionalmene unionable si para toda pareja $X,Y\in\mathcal K$ y para todo $A\in\mathcal K$ con $A\subset X$ y $f:A\to Y$ con $f(A)\in\mathcal K$ entonces $X\cup_{f}Y\in\mathcal K$.&lt;br&gt;&lt;br&gt;Teorema&lt;br&gt; Si $X\in AR(HU)$ entonces $X$ es un continuo de Kelley.&lt;br&gt;&lt;br&gt;Definicion&lt;br&gt; Diremos que $X$ es pointwise $w$-unionable si dados $K$, $p$ y $p_n\to p$ y $K_n\to K$ son copias homeomorfas de $K$ y $h_n:K\to K_n$ son homeomorfismos con $h_n(p)=p_n$ entonces adjuntando las copias $K_n$ por $p_n$ a $X$, $Y=X\cup \bigcup_0^\infty K_n\in\mathcal K$.&lt;br&gt;&lt;br&gt;Definicion&lt;br&gt; $X$ se dice continuo (arco) Kelly si dados $K$ un compacto y $p_n\to p$ entonces existen compactos (arcoconexos, loc. conexos o arboles)$K_n\ni p_n$ con $K_n\to K$.&lt;br&gt;&lt;br&gt;Nota&lt;br&gt; El pseudarco es Kelley pero no arco-Kelley.&lt;br&gt;&lt;br&gt;Teorema&lt;br&gt; Si $X\in AR(\mathcal K)$ entonces es arco-Kelley.&lt;br&gt;&lt;br&gt;Definicion&lt;br&gt; $X$ se dice ser AAP, arc-approximation property, si para todo compacto $K$ de $X$ y $p\in K$ existen $K_n$ arcoconexos con $p\in K_n\to K\ni p$.&lt;br&gt;&lt;br&gt;Proposicion&lt;br&gt; Arco Kelley es equivalente a ser Kelley mas AAP.&lt;br&gt;&lt;br&gt;Teorema de Effross&lt;br&gt; Si $X$ es continuo homogeneo y $p_n\to p$ entonces existen homeomorfismos $h_n:X\to X$ tales que $h_n(p)=p_n$ y $h_n\to 1_X$.&lt;br&gt;&lt;br&gt;$X$ tiene la generalized $\epsilon$-push property si dadas $p_n\to p$ existen entonces funciones continuas $f_n:X\to X$ tales que $f_n(p)=p_n$ y con $f_n\to 1_X$.&lt;br&gt;&lt;br&gt;Teorema&lt;br&gt; Si $\mathcal K$ es una clse $w$-unionable por puntos entonces los elementos en $AR(\mathcal K)$ tienen la generalized $\epsilon$-push property.&lt;br&gt;&lt;br&gt;Teorema&lt;br&gt; Si $X=\lim \{T_n, f_n\}$ con $T_n$  son arboles y $f_n$ aplicaciones confluentes entonces $X\in AR(HU)$.&lt;br&gt;&lt;br&gt;Nota&lt;br&gt;&lt;ul&gt;&lt;ul&gt;&lt;li&gt; $X\in AR(D)$ sii $X$ es dendroide de Kelley.&lt;/li&gt;&lt;li&gt; Existe un dendroide suave universal por Mohler y Nikel. Por un teorema de Czuba los dendroides de Kelley son suaves. Asi pues en la construccion del dendroide universal tenemos que este contiene a todos los dendroides de Kelley que son suaves.&lt;/li&gt;&lt;/ul&gt;&lt;/ul&gt;&lt;br&gt;Problemas&lt;br&gt;&lt;ul&gt;&lt;ul&gt;&lt;li&gt; Si cada elemento en $AR(HU)$ es tipo arbol.&lt;/li&gt;&lt;li&gt; Sabemos que si $X\in AR(HU$ y no contiene triodo simple $T$ entonces $X$ es tipo arco (ademas con la propiedad de Kelley).&lt;/li&gt;&lt;/ul&gt;&lt;/ul&gt;&lt;br&gt;Nota&lt;br&gt; Tenemos una caracterizacion: si $X$ es un dendroide y esta en $AR(HU)$  sii es un retracto de Mohler Nikel.&lt;br&gt;&lt;br&gt;Corolario&lt;br&gt;$AR(D)=D\cap AR(HU)$&lt;br&gt;&lt;br&gt;Proposicion&lt;br&gt; Los solenoides no estan en $AR(HU)$. Para la demostracion se utilizan los siuientes resultados sobre solenoides.&lt;br&gt;&lt;ul&gt;&lt;ul&gt;&lt;ul&gt;&lt;li&gt; Dado un solenoide $X$, existe $Y$ para el cual no existe $f:X\to Y$ continua y sobreyectiva.&lt;/li&gt;&lt;li&gt; Si $g:X\to Y$ entre solenoides entonces $g$ es homotopica a $h=\underset{\longleftarrow}{\lim} h_n:X_n\to Y_n$, entre torres.&lt;/li&gt;&lt;/ul&gt;&lt;/ul&gt;&lt;/ul&gt;&lt;br&gt;Lema1 para demo de T1&lt;br&gt;  Si $f:S\to T$ es abierta entre arboles entonces existen $V\subset T$ y $W\subset S$ conjuntos finitos tales que $f(W)=V$ y tales que si restringimos $f$ a una componente de $&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;S-W&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#S-W&quot; href=&quot;null#S-W&quot; class=&quot;externalLink null&quot;&gt;S-W&lt;/a&gt;$ entonces es homeomorfismo entre intervalos abiertos.&lt;br&gt;&lt;br&gt;Lema2 para demo de T1&lt;br&gt; Si $f:S\to T$ abierta o monotona con un numero finito de preimagenes no degeneradas entre arboles y $\epsilon &amp;gt;0$ entonces existen $V_1,\dots , V_n$ abiertos conexos tales que $V=V_1\cup\dots\cup V_n$ con $diam V_i&amp;lt;\epsilon$ y $f$ restringida a componentes de $S-f^{-1}(V)$ es homeomorfismo entre intervalos abiertos.&lt;br&gt;&lt;br&gt;Teorema&lt;br&gt; Todo conjunto tipo arbol se puede encajar en el limite inverso de arboles con aplicaciones abiertas como aplicaciones borde.&lt;br&gt;&lt;br&gt;Nota&lt;br&gt;&lt;ul&gt;&lt;ul&gt;&lt;li&gt; Sabemos que $AR(TL)=AR(HU)\cap TL$.&lt;/li&gt;&lt;li&gt; Sabemos que existe un tipo arbol que es $AR$.&lt;/li&gt;&lt;/ul&gt;&lt;/ul&gt;&lt;br&gt;Teorema&lt;br&gt; La imagen monotona de un continuo $AR(TL)$ es un $AR(TL)$.&lt;br&gt;&lt;br&gt;Problemas&lt;br&gt;&lt;ul&gt;&lt;ul&gt;&lt;li&gt; No sabemos si la imagen monotona de un $AR(HU)$ esta en $AR(HU)$. Si es cierto si el espacio es tipo arbol.&lt;/li&gt;&lt;li&gt; No sabemos si la imagen abierta (confluente) de un $AR(TL)$ esta en $AR(TL)$.&lt;/li&gt;&lt;li&gt; Todos los ejemplos conocidos de $AR(HU)$ son bien limite inverso de $TL$ o bien imagen monotona de limite inverso de $TL$. No sabemos si un continuo en $AR(TL)$ es imagen monotona de limite inverso de arboles  con aplicaciones confluentes.&lt;/li&gt;&lt;/ul&gt;&lt;/ul&gt;</description>
<link>null#Continuum</link>
<pubDate>Tue, 29 Nov 2011 11:01:00 GMT</pubDate>

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<item>
<title>Work in progress</title>
<description>    &quot;Ends of properly 3-realizable groups&quot; with F.F. Lasheras and A. Quintero.&lt;br&gt;    &quot;Nerve Theorems for Locally Finite Complexes&quot; with M. Ponce and A. Quintero.&lt;br&gt;    &quot;A Dévissage Theorem for Waldhausen Categories.&quot;&lt;br&gt;    &quot;Localization Sequences for Exact Categories: Deloop and Negative K-theory.&quot;</description>
<link>null#%5B%5BWork%20in%20progress%5D%5D</link>
<pubDate>Tue, 29 Nov 2011 10:59:00 GMT</pubDate>

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<title>Open problems on P3R-groups</title>
<description>PROPERLY 3-REALIZABLE GROUPS: OPEN QUESTIONS&lt;br&gt;SEPTEMBER 9, 2008&lt;br&gt;&lt;br&gt;Abstract. We quickly review &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-groups&quot; href=&quot;null#P3R-groups&quot; class=&quot;externalLink null&quot;&gt;P3R-groups&lt;/a&gt; and their relations to well-known conjectures. We also detail some of the open problems on this topic.&lt;br&gt;1. Introduction&lt;br&gt;&lt;br&gt;A group G is said to be properly 3-realizable, &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R&quot; href=&quot;null#P3R&quot; class=&quot;externalLink null&quot;&gt;P3R&lt;/a&gt; for short, if there is a finite 2-complex X with π1(X)≅G whose universal cover X̃ is proper homotopy equivalent to a 3-manifold (which may be called a proper 3-realization of G). One can only ensure X̃ always to be proper homotopy equivalent to some 4-manifold, see [&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;CL05&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#CL05&quot; href=&quot;null#CL05&quot; class=&quot;externalLink null&quot;&gt;CL05&lt;/a&gt;].&lt;br&gt;The class of &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-groups&quot; href=&quot;null#P3R-groups&quot; class=&quot;externalLink null&quot;&gt;P3R-groups&lt;/a&gt; is known to contain the classes of finite groups, finitely generated abelian groups, direct products and ascending &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;HNN-extensions&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#HNN-extensions&quot; href=&quot;null#HNN-extensions&quot; class=&quot;externalLink null&quot;&gt;HNN-extensions&lt;/a&gt; of finitely presented groups, simply connected at ∞ groups and one-relator groups. Also, the class of &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-groups&quot; href=&quot;null#P3R-groups&quot; class=&quot;externalLink null&quot;&gt;P3R-groups&lt;/a&gt; is closed under amalgamated products (and &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;HNN-extensions&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#HNN-extensions&quot; href=&quot;null#HNN-extensions&quot; class=&quot;externalLink null&quot;&gt;HNN-extensions&lt;/a&gt;) over finite groups. See [&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;CL05&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#CL05&quot; href=&quot;null#CL05&quot; class=&quot;externalLink null&quot;&gt;CL05&lt;/a&gt;], [CLRQ] and related works.&lt;br&gt;It is worth noting &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-groups&quot; href=&quot;null#P3R-groups&quot; class=&quot;externalLink null&quot;&gt;P3R-groups&lt;/a&gt; have H2(G, ℤG) free abelian. This is related to a long standing conjecture attributed to Hopf. Recent results, see [&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;CLQ06&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#CLQ06&quot; href=&quot;null#CLQ06&quot; class=&quot;externalLink null&quot;&gt;CLQ06&lt;/a&gt;], show that not all semistable groups are &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R&quot; href=&quot;null#P3R&quot; class=&quot;externalLink null&quot;&gt;P3R&lt;/a&gt;. It is unknown whether or not all &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-groups&quot; href=&quot;null#P3R-groups&quot; class=&quot;externalLink null&quot;&gt;P3R-groups&lt;/a&gt; are semistable. This relates for 1-ended groups to the Covering Conjecture as follows. Clearly, the fundamental group G of a closed 3-manifold is &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R&quot; href=&quot;null#P3R&quot; class=&quot;externalLink null&quot;&gt;P3R&lt;/a&gt;. A proper 3-realization of such G is, up to proper homotopy equivalence, an open 3-manifold with a collection of 3-balls removed. If there were non-semistable &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-groups&quot; href=&quot;null#P3R-groups&quot; class=&quot;externalLink null&quot;&gt;P3R-groups&lt;/a&gt; this manifold would be a punctured ℝ3 showing the conjecture, see [&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;CLQ06&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#CLQ06&quot; href=&quot;null#CLQ06&quot; class=&quot;externalLink null&quot;&gt;CLQ06&lt;/a&gt;].&lt;br&gt;Some open questions&lt;br&gt;&lt;br&gt;Non-semistability and &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-groups&quot; href=&quot;null#P3R-groups&quot; class=&quot;externalLink null&quot;&gt;P3R-groups&lt;/a&gt;. One-ended groups which are semistable are known to be &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R&quot; href=&quot;null#P3R&quot; class=&quot;externalLink null&quot;&gt;P3R&lt;/a&gt; if and only if the fundamental pro-group is pro-isomorphic to a tower of finitely generated free groups of increasing rank, where the bonding maps are projections, see [&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;CLQ06&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#CLQ06&quot; href=&quot;null#CLQ06&quot; class=&quot;externalLink null&quot;&gt;CLQ06&lt;/a&gt;]. It is an open question what kind of towers may occur as fundamental pro-groups of (non-semistable) &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-groups&quot; href=&quot;null#P3R-groups&quot; class=&quot;externalLink null&quot;&gt;P3R-groups&lt;/a&gt;. Notice that the possible proper 3-realizations for these groups are open Whitehead manifolds, once the boundary is filled up by spheres and semiplanes if necessary. It is also unknown whether or not the class of &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-groups&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-groups&quot; href=&quot;null#P3R-groups&quot; class=&quot;externalLink null&quot;&gt;P3R-groups&lt;/a&gt; is contained in the class of semistable groups.&lt;br&gt;&lt;br&gt;Independence. The definition of a &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-group&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-group&quot; href=&quot;null#P3R-group&quot; class=&quot;externalLink null&quot;&gt;P3R-group&lt;/a&gt; seems to depend on the choice of the 2-complex X. In this respect, given a &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R-group&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R-group&quot; href=&quot;null#P3R-group&quot; class=&quot;externalLink null&quot;&gt;P3R-group&lt;/a&gt; G and any other finite 2-complex Y with π1(Y )≅G, the universal cover of the wedge Y ∨ S2 is shown to be proper homotopy equivalent to a 3-manifold, see [&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;CL05&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#CL05&quot; href=&quot;null#CL05&quot; class=&quot;externalLink null&quot;&gt;CL05&lt;/a&gt;]. Under which conditions is Ỹ proper homotopy equivalent to a 3-manifold itself?&lt;br&gt;&lt;br&gt;Higher dimensions. Proper 3-realizability can be alternetively described as follows: a group G of type F2 for which the 2-skeleton of the universal cover of a K(G,1) is proper homotopy equivalent to a 3-manifold. Similarly, we may say that a Fn group G is proper 2n − 1-realizable, P(2n − 1)R for short, if the n-skeleton of the universal cover of a K(G,1) is properly homotopy equivalent to a 2n − 1-manifold. As in the 3-dimensional case, the embedding theorems [J.R65],[&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;DR93&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#DR93&quot; href=&quot;null#DR93&quot; class=&quot;externalLink null&quot;&gt;DR93&lt;/a&gt;] and [&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;CFLQ03&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#CFLQ03&quot; href=&quot;null#CFLQ03&quot; class=&quot;externalLink null&quot;&gt;CFLQ03&lt;/a&gt;] only ensure proper homotopy equivalence to 2n-manifolds. We ask ourselves which kind of algebraic properties consecuences has this property on G and when, for which n, this property becomes trivial.&lt;br&gt;References&lt;br&gt;&lt;br&gt; &lt;br&gt;&lt;br&gt;[&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;CFLQ03&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#CFLQ03&quot; href=&quot;null#CFLQ03&quot; class=&quot;externalLink null&quot;&gt;CFLQ03&lt;/a&gt;] M. Cárdenas, T. Fernández, F. F. Lasheras, and A. Quintero, Embedding proper homotopy types, Colloq. Math. 95 (2003), no. 1, 1–20. MR 1 967 550&lt;br&gt;&lt;br&gt;[&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;CL05&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#CL05&quot; href=&quot;null#CL05&quot; class=&quot;externalLink null&quot;&gt;CL05&lt;/a&gt;] M. Cárdenas and F. F. Lasheras, Properly 3-realizable groups: a survey, Geometric methods in group theory, Contemp. Math., vol. 372, Amer. Math. Soc., Providence, RI, 2005, pp. 1–9. MR &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;MR2139672&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#MR2139672&quot; href=&quot;null#MR2139672&quot; class=&quot;externalLink null&quot;&gt;MR2139672&lt;/a&gt;&lt;br&gt;&lt;br&gt;[&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;CLQ06&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#CLQ06&quot; href=&quot;null#CLQ06&quot; class=&quot;externalLink null&quot;&gt;CLQ06&lt;/a&gt;] M. Cárdenas, F. F. Lasheras, and A. Quintero, On ends of proper 3-realizable groups, Work on progress, 2006.&lt;br&gt;&lt;br&gt;[CLRQ] M. Cárdenas, F. F. Lasheras, D. Repovš, and A. Quintero, Amalgamated products and properly 3-realizable groups, To appear.&lt;br&gt;&lt;br&gt;[&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;DR93&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#DR93&quot; href=&quot;null#DR93&quot; class=&quot;externalLink null&quot;&gt;DR93&lt;/a&gt;] A. N. Dranišnikov and D. Repovš, Embeddings up to homotopy type in Euclidean space, Bull. Austral. Math. Soc. 47 (1993), no. 1, 145–148. MR 94d:57049&lt;br&gt;&lt;br&gt;[J.R65] Stallings J.R., The embedding of homotopy types into manifolds, Mimeographed Notes. Fine Library Princetone University, 1965.&lt;br&gt;&lt;br&gt;&lt;hr class=&quot;slideSeparator&quot;&gt;Some lost open questions are:&lt;br&gt;&lt;br&gt;i) If $G$ is &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R&quot; href=&quot;null#P3R&quot; class=&quot;externalLink null&quot;&gt;P3R&lt;/a&gt;, when is one , if any, of its proper realizations the result of a thickening (of the corresponding universal covering)? &lt;br&gt;&lt;br&gt;ii) For $\underline{P}$ , a telescopic tower of groups, the classifying space  $B(\underline{P})$ is not the proper homotopy type of any covering space, i.e., its thickening it is not the proper realization of any f.p. group. True or false?&lt;br&gt;&lt;br&gt;iii) For $G$ &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R&quot; href=&quot;null#P3R&quot; class=&quot;externalLink null&quot;&gt;P3R&lt;/a&gt; and one-ended, gwsc, qsf and sci are equivalent, true? Update: Not true take $G=\mathbb Z\oplus\mathbb Z$.&lt;br&gt;&lt;br&gt;iv) For $G$ infinite, &lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/tw.html&amp;quot;&quot; tiddlylink=&quot;P3R&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#P3R&quot; href=&quot;null#P3R&quot; class=&quot;externalLink null&quot;&gt;P3R&lt;/a&gt; and one-ended  we have that $pi_2$ is isomorphic as a group to an infinite sum of copies of $\mathbb Z$. What kind of $\mathbb ZG$-module can be?&lt;br&gt;&lt;br&gt;</description>
<link>null#%5B%5BOpen%20problems%20on%20P3R-groups%5D%5D</link>
<pubDate>Tue, 29 Nov 2011 10:58:00 GMT</pubDate>

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<title>Projective crossed modules</title>
<description>We list some resources on projective crossed modules:&lt;br&gt;&lt;br&gt;    An AMS article &lt;a target=&quot;_blank&quot; title=&quot;External link to http://www.ams.org/mathscinet-getitem?mr=2001e:57001&quot; href=&quot;http://www.ams.org/mathscinet-getitem?mr=2001e:57001&quot; class=&quot;externalLink&quot;&gt;http://www.ams.org/mathscinet-getitem?mr=2001e:57001&lt;/a&gt;.&lt;br&gt;    The mother of all references on crossed modules &lt;a target=&quot;_blank&quot; title=&quot;External link to http://www.bangor.ac.uk/~mas010/nonab-a-t.html.(Thanks&quot; href=&quot;http://www.bangor.ac.uk/%7Emas010/nonab-a-t.html.%28Thanks&quot; class=&quot;externalLink&quot;&gt;http://www.bangor.ac.uk/~mas010/nonab-a-t.html.(Thanks&lt;/a&gt; to Andy Tonks for the ref).&lt;br&gt;    Bangor's resources &lt;a target=&quot;_blank&quot; title=&quot;External link to http://www/bangor.ac.uk/~mas010/nonlnpub.htm&quot; href=&quot;http://www/bangor.ac.uk/%7Emas010/nonlnpub.htm&quot; class=&quot;externalLink&quot;&gt;http://www/bangor.ac.uk/~mas010/nonlnpub.htm&lt;/a&gt;. (Thanks to Andy Tonks for the ref).</description>
<link>null#%5B%5BProjective%20crossed%20modules%5D%5D</link>
<pubDate>Tue, 29 Nov 2011 10:56:00 GMT</pubDate>

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<item>
<title>Problemas abiertos en Teoría de Contínuos</title>
<description>&quot;Problemas abiertos en teoría de los continuos&quot;&lt;br&gt;&lt;br&gt;por el&lt;br&gt;&lt;br&gt;Profesor W. Charatonik, Missouri University.&lt;br&gt;&lt;br&gt; &lt;br&gt;&lt;br&gt;Ante cualquier duda consúltese &quot;Hyperspaces : fundamentals and recent advances&quot; de Alejandro Illanes y Sam B. Nadler, Jr. &lt;br&gt;&lt;br&gt;Q1 Si $X\subset \mathbb R^2$ es un continuo tal que $\mathbb R^2-X$ es conexo. ¿Es cierto que $X$ tiene la propiedad de punto fijo?&lt;br&gt;&lt;br&gt;Q2 ¿Cuáles son los conjuntos hereditariamente equivalentes?&lt;br&gt;&lt;br&gt;Q3 ¿Es cierto que si $X$ es un conjunto encadenable y $f:X\to Y$ es una aplicación confluente entonces $Y$ también es encadenable?&lt;br&gt;&lt;br&gt;Q4 ¿Cuáles son los subconjuntos del plano que son homogéneos?&lt;br&gt;&lt;br&gt;Q5 ¿Es el pseudoarco el único homogéneo hereditariamente indescomponible tipo árbol?&lt;br&gt;&lt;br&gt;Q6 Dado un triodo simple $Y$, ¿existen aplicaciones continuas $f,g:Y\to Y$ tales que $fg=gf$ y con $f(x)\neq g(x)$ para todo $x\in Y$?&lt;br&gt;&lt;br&gt;Q7 ¿Cuáles son los conjuntos homogéneos de $\mathbb R^3$ localmente conexos?&lt;br&gt;&lt;br&gt;Q8 ¿Cómo se llaman los conjuntos $X\subset\mathbb R^2$ que verifican que dado para todo $x\in X-\mathbb R^2$ esixste una recta $l$ que no corta a $X$? ¿Y si permitimos que $l$ pueda ser además una semirrecta?&lt;br&gt;&lt;br&gt;Q9 Dada la sucesión numérica $\{x_n\}$ con $1\leq x_n \leq 15$, cuyos primeros términos son $14, 5, 4, 10, 12, 2, 9, 8, 11, 15, 6, 7, 13, 3, 1$, ¿cuál es la regla que la describe? Si permitimos $1\leq x_n \leq 16$ ¿dónde aparecería $16$?&lt;br&gt;&lt;br&gt;Podemos encontrar más problemas, y algunas soluciones aquí.&lt;br&gt;&lt;br&gt; </description>
<link>null#%5B%5BProblemas%20abiertos%20en%20Teor%C3%ADa%20de%20Cont%C3%ADnuos%5D%5D</link>
<pubDate>Tue, 29 Nov 2011 10:55:00 GMT</pubDate>

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<title>UploadLog</title>
<description>&lt;table class=&quot;twtable&quot;&gt;&lt;tbody&gt;&lt;tr class=&quot;evenRow&quot;&gt;&lt;th align=&quot;center&quot;&gt;date&lt;/th&gt;&lt;th align=&quot;center&quot;&gt;user&lt;/th&gt;&lt;th align=&quot;center&quot;&gt;location&lt;/th&gt;&lt;th align=&quot;center&quot;&gt;storeUrl&lt;/th&gt;&lt;th align=&quot;center&quot;&gt;uploadDir&lt;/th&gt;&lt;th align=&quot;center&quot;&gt;toFilename&lt;/th&gt;&lt;th align=&quot;center&quot;&gt;backupdir&lt;/th&gt;&lt;th align=&quot;center&quot;&gt;origin&lt;/th&gt;&lt;/tr&gt;&lt;tr class=&quot;oddRow&quot;&gt;&lt;td align=&quot;center&quot;&gt;29/11/2011 10:50:17&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;Cárdenas&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; href=&quot;file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; class=&quot;externalLink&quot;&gt;twmcard2.html&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://localhost/twmcard/store.php&quot; href=&quot;http://localhost/twmcard/store.php&quot; class=&quot;externalLink&quot;&gt;store.php&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;.&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to  http://localhost/twmcard/tw.html&quot; href=&quot;%20http://localhost/twmcard/tw.html&quot; class=&quot;externalLink&quot;&gt;tw.html &lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;backup&lt;/td&gt;&lt;/tr&gt;&lt;tr class=&quot;evenRow&quot;&gt;&lt;td align=&quot;center&quot;&gt;29/11/2011 10:52:04&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;Cárdenas&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; href=&quot;file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; class=&quot;externalLink&quot;&gt;twmcard2.html&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://localhost/twmcard/store.php&quot; href=&quot;http://localhost/twmcard/store.php&quot; class=&quot;externalLink&quot;&gt;store.php&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;.&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to  http://localhost/twmcard/tw.html&quot; href=&quot;%20http://localhost/twmcard/tw.html&quot; class=&quot;externalLink&quot;&gt;tw.html &lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;backup&lt;/td&gt;&lt;/tr&gt;&lt;tr class=&quot;oddRow&quot;&gt;&lt;td align=&quot;center&quot;&gt;29/11/2011 10:52:29&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;Cárdenas&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; href=&quot;file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; class=&quot;externalLink&quot;&gt;twmcard2.html&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://127.0.0.1/twmcard/store.php&quot; href=&quot;http://127.0.0.1/twmcard/store.php&quot; class=&quot;externalLink&quot;&gt;store.php&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;.&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to  http://127.0.0.1/twmcard/tw.html&quot; href=&quot;%20http://127.0.0.1/twmcard/tw.html&quot; class=&quot;externalLink&quot;&gt;tw.html &lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;backup&lt;/td&gt;&lt;/tr&gt;&lt;tr class=&quot;evenRow&quot;&gt;&lt;td align=&quot;center&quot;&gt;29/11/2011 10:53:03&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;Cárdenas&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; href=&quot;file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; class=&quot;externalLink&quot;&gt;twmcard2.html&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://localhost/twmcard/store.php&quot; href=&quot;http://localhost/twmcard/store.php&quot; class=&quot;externalLink&quot;&gt;store.php&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;.&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to  http://localhost/twmcard/tw.html&quot; href=&quot;%20http://localhost/twmcard/tw.html&quot; class=&quot;externalLink&quot;&gt;tw.html &lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;backup&lt;/td&gt;&lt;/tr&gt;&lt;tr class=&quot;oddRow&quot;&gt;&lt;td align=&quot;center&quot;&gt;29/11/2011 10:53:37&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;Cárdenas&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; href=&quot;file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; class=&quot;externalLink&quot;&gt;twmcard2.html&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://localhost/twmcard/store.php&quot; href=&quot;http://localhost/twmcard/store.php&quot; class=&quot;externalLink&quot;&gt;store.php&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;.&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to  http://localhost/twmcard/tw.html&quot; href=&quot;%20http://localhost/twmcard/tw.html&quot; class=&quot;externalLink&quot;&gt;tw.html &lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;backup&lt;/td&gt;&lt;/tr&gt;&lt;tr class=&quot;evenRow&quot;&gt;&lt;td align=&quot;center&quot;&gt;29/11/2011 10:58:29&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;Cárdenas&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; href=&quot;file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; class=&quot;externalLink&quot;&gt;twmcard2.html&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://localhost/twmcard/store.php&quot; href=&quot;http://localhost/twmcard/store.php&quot; class=&quot;externalLink&quot;&gt;store.php&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;.&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to  http://localhost/twmcard/tw.html&quot; href=&quot;%20http://localhost/twmcard/tw.html&quot; class=&quot;externalLink&quot;&gt;tw.html &lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;backup&lt;/td&gt;&lt;/tr&gt;&lt;tr class=&quot;oddRow&quot;&gt;&lt;td align=&quot;center&quot;&gt;29/11/2011 10:59:59&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;Cárdenas&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; href=&quot;file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; class=&quot;externalLink&quot;&gt;twmcard2.html&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://localhost/twmcard/store.php&quot; href=&quot;http://localhost/twmcard/store.php&quot; class=&quot;externalLink&quot;&gt;store.php&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;.&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to  http://localhost/twmcard/tw.html&quot; href=&quot;%20http://localhost/twmcard/tw.html&quot; class=&quot;externalLink&quot;&gt;tw.html &lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;backup&lt;/td&gt;&lt;/tr&gt;&lt;tr class=&quot;evenRow&quot;&gt;&lt;td align=&quot;center&quot;&gt;29/11/2011 11:08:55&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;Cárdenas&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; href=&quot;file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; class=&quot;externalLink&quot;&gt;twmcard2.html&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://localhost/twmcard/store.php&quot; href=&quot;http://localhost/twmcard/store.php&quot; class=&quot;externalLink&quot;&gt;store.php&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;.&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to  http://localhost/twmcard/tw.html&quot; href=&quot;%20http://localhost/twmcard/tw.html&quot; class=&quot;externalLink&quot;&gt;tw.html &lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;backup&lt;/td&gt;&lt;/tr&gt;&lt;tr class=&quot;oddRow&quot;&gt;&lt;td align=&quot;center&quot;&gt;29/11/2011 11:17:57&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;Cárdenas&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; href=&quot;file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; class=&quot;externalLink&quot;&gt;twmcard2.html&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://localhost/twmcard/store.php&quot; href=&quot;http://localhost/twmcard/store.php&quot; class=&quot;externalLink&quot;&gt;store.php&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;.&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to  http://localhost/twmcard/tw.html&quot; href=&quot;%20http://localhost/twmcard/tw.html&quot; class=&quot;externalLink&quot;&gt;tw.html &lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;backup&lt;/td&gt;&lt;/tr&gt;&lt;tr class=&quot;evenRow&quot;&gt;&lt;td align=&quot;center&quot;&gt;29/11/2011 11:26:21&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;Cárdenas&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; href=&quot;file:///home/olmy/Desktop/tiddly/twhomepage2/twmcard2.html&quot; class=&quot;externalLink&quot;&gt;twmcard2.html&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to http://personal.us.es/mcard/store.php&quot; href=&quot;http://personal.us.es/mcard/store.php&quot; class=&quot;externalLink&quot;&gt;store.php&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;.&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;&lt;a target=&quot;_blank&quot; title=&quot;External link to  http://personal.us.es/mcard/tw2.html&quot; href=&quot;%20http://personal.us.es/mcard/tw2.html&quot; class=&quot;externalLink&quot;&gt;tw2.html &lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;center&quot;&gt;backup&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;</description>
<link>null#UploadLog</link>
<pubDate>Tue, 29 Nov 2011 10:26:00 GMT</pubDate>

</item>
<item>
<title>UploadPluginTweak</title>
<description>&lt;em&gt; null logger : no more UploadLog and no upload logging&lt;br&gt;&lt;/em&gt; BidiX - 2006/11/8&lt;br&gt;&lt;pre&gt;config.macros.upload.UploadLog = function() {return this;};
config.macros.upload.UploadLog.prototype.startUpload = function(storeUrl, toFilename, uploadDir,  backupDir) {};
config.macros.upload.UploadLog.prototype.endUpload = function() {};
&lt;/pre&gt;</description>
<category>ImportExportPackage</category>
<category>settings</category>
<category>systemConfig</category>
<category>AuthoringPackage</category>
<category>includeNew</category>
<link>null#UploadPluginTweak</link>
<pubDate>Tue, 29 Nov 2011 10:16:00 GMT</pubDate>

</item>
<item>
<title>Elementos de la Homología Clásica</title>
<description>&lt;a target=&quot;_blank&quot; title=&quot;External link to http://ehcuds.tiddlyspot.com&quot; href=&quot;http://ehcuds.tiddlyspot.com&quot; class=&quot;externalLink&quot;&gt;Diario de clase&lt;/a&gt;</description>
<category>framedLinks</category>
<category>clase</category>
<link>null#%5B%5BElementos%20de%20la%20Homolog%C3%ADa%20Cl%C3%A1sica%5D%5D</link>
<pubDate>Tue, 29 Nov 2011 10:11:00 GMT</pubDate>

</item>
<item>
<title>Tutorías 2010-11</title>
<description>&lt;h3&gt;Curso 2010-11 Horario de tutorías&lt;/h3&gt;&lt;ul&gt;&lt;li&gt; Primer cuatrimestre: sin docencia , previa cita en mcard&quot;at&quot;us.es&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre hasta el 20/06/11: lunes, miércoles y jueves de 9:00 a 9:30 y de 11:30 a 12:30 y martes de 9:30 a 11:00.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre del 21/06/11 al final del cuatrimestre: martes y miércoles de 9:30 a 12:30.&lt;/li&gt;&lt;/ul&gt;&lt;h4&gt;Cursos:&lt;/h4&gt;&lt;ul&gt;&lt;li&gt; Segundo cuatrimestre: Introduccion a la Topología Geométrica.&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre: Elementos de la Homología Clásica (Grupo A).&lt;/li&gt;&lt;li&gt; Segundo cuatrimestre: Topología.&lt;/li&gt;&lt;/ul&gt;</description>
<category>clase</category>
<link>null#%5B%5BTutor%C3%ADas%202010-11%5D%5D</link>
<pubDate>Tue, 29 Nov 2011 10:10:00 GMT</pubDate>

</item>
<item>
<title>SideBarOptions</title>
<description>&lt;a class=&quot;button&quot; title=&quot;Search this TiddlyWiki&quot; href=&quot;javascript:;&quot;&gt;search&lt;/a&gt;&lt;input autocomplete=&quot;off&quot; accesskey=&quot;F&quot; size=&quot;15&quot; class=&quot;txtOptionInput searchField&quot; type=&quot;text&quot;&gt;&lt;a tiddlyfields=&quot;server.type:&amp;quot;file&amp;quot; server.host:&amp;quot;file:///home/olmy/Desktop/tiddly/twhomepage2/index.html&amp;quot;&quot; tiddlylink=&quot;GettingStarted&quot; refresh=&quot;link&quot; target=&quot;_blank&quot; title=&quot;External link to null#GettingStarted&quot; href=&quot;null#GettingStarted&quot; class=&quot;externalLink null&quot;&gt;GettingStarted&lt;/a&gt;&lt;a class=&quot;button&quot; title=&quot;Close all displayed tiddlers (except any that are being edited)&quot; href=&quot;javascript:;&quot;&gt;close all&lt;/a&gt;&lt;a class=&quot;button&quot; title=&quot;Link to an URL that retrieves all the currently displayed tiddlers&quot; href=&quot;javascript:;&quot;&gt;permaview&lt;/a&gt;&lt;a newtemplate=&quot;2&quot; newfocus=&quot;title&quot; isjournal=&quot;false&quot; newtitle=&quot;New Tiddler&quot; accesskey=&quot;N&quot; class=&quot;button&quot; title=&quot;Create a new tiddler&quot; href=&quot;javascript:;&quot;&gt;new tiddler&lt;/a&gt;&lt;a newtemplate=&quot;2&quot; newfocus=&quot;text&quot; params=&quot;journal&quot; isjournal=&quot;true&quot; newtitle=&quot;DD MMM YYYY&quot; accesskey=&quot;J&quot; class=&quot;button&quot; title=&quot;Create a new tiddler from the current date and time&quot; href=&quot;javascript:;&quot;&gt;new journal&lt;/a&gt;&lt;a accesskey=&quot;S&quot; class=&quot;button&quot; title=&quot;Save all tiddlers to create a new TiddlyWiki&quot; href=&quot;javascript:;&quot;&gt;save changes&lt;/a&gt;&lt;a class=&quot;button&quot; title=&quot;Save and Upload this TiddlyWiki with UploadOptions&quot; href=&quot;javascript:;&quot;&gt;upload&lt;/a&gt;&lt;a class=&quot;button&quot; title=&quot;Change TiddlyWiki advanced options&quot; href=&quot;javascript:;&quot;&gt;options »&lt;/a&gt;&lt;div tiddler=&quot;OptionsPanel&quot; refresh=&quot;content&quot; style=&quot;display: block;&quot; cookie=&quot;chkSliderOptionsPanel&quot; class=&quot;sliderPanel&quot;&gt;These &lt;a tiddlylink=&quot;InterfaceOptions&quot; refresh=&quot;link&quot; class=&quot;tiddlyLink tiddlyLinkNonExisting&quot; title=&quot;The tiddler 'InterfaceOptions' doesn't yet exist&quot; href=&quot;javascript:;&quot;&gt;InterfaceOptions&lt;/a&gt; for customising &lt;a tiddlylink=&quot;TiddlyWiki&quot; refresh=&quot;link&quot; class=&quot;tiddlyLink tiddlyLinkNonExisting&quot; title=&quot;The tiddler 'TiddlyWiki' doesn't yet exist&quot; href=&quot;javascript:;&quot;&gt;TiddlyWiki&lt;/a&gt; are saved in your browser&lt;br&gt;&lt;br&gt;Your username for signing your edits. Write it as a &lt;a tiddlylink=&quot;WikiWord&quot; refresh=&quot;link&quot; class=&quot;tiddlyLink tiddlyLinkNonExisting&quot; title=&quot;The tiddler 'WikiWord' doesn't yet exist&quot; href=&quot;javascript:;&quot;&gt;WikiWord&lt;/a&gt; (eg &lt;a tiddlylink=&quot;JoeBloggs&quot; refresh=&quot;link&quot; class=&quot;tiddlyLink tiddlyLinkNonExisting&quot; title=&quot;The tiddler 'JoeBloggs' doesn't yet exist&quot; href=&quot;javascript:;&quot;&gt;JoeBloggs&lt;/a&gt;)&lt;br&gt;&lt;br&gt;&lt;input title=&quot;Username for signing your edits&quot; class=&quot;txtOptionInput&quot; option=&quot;txtUserName&quot;&gt;&lt;br&gt;&lt;input title=&quot;Keep backup file when saving changes&quot; class=&quot;chkOptionInput&quot; option=&quot;chkSaveBackups&quot; type=&quot;checkbox&quot;&gt; &lt;a tiddlylink=&quot;SaveBackups&quot; refresh=&quot;link&quot; class=&quot;tiddlyLink tiddlyLinkNonExisting&quot; title=&quot;The tiddler 'SaveBackups' doesn't yet exist&quot; href=&quot;javascript:;&quot;&gt;SaveBackups&lt;/a&gt;&lt;br&gt;&lt;input title=&quot;Automatically save changes&quot; class=&quot;chkOptionInput&quot; option=&quot;chkAutoSave&quot; type=&quot;checkbox&quot;&gt; &lt;a tiddlylink=&quot;AutoSave&quot; refresh=&quot;link&quot; class=&quot;tiddlyLink tiddlyLinkNonExisting&quot; title=&quot;The tiddler 'AutoSave' doesn't yet exist&quot; href=&quot;javascript:;&quot;&gt;AutoSave&lt;/a&gt;&lt;br&gt;&lt;input title=&quot;Enable regular expressions for searches&quot; class=&quot;chkOptionInput&quot; option=&quot;chkRegExpSearch&quot; type=&quot;checkbox&quot;&gt; &lt;a tiddlylink=&quot;RegExpSearch&quot; refresh=&quot;link&quot; class=&quot;tiddlyLink tiddlyLinkNonExisting&quot; title=&quot;The tiddler 'RegExpSearch' doesn't yet exist&quot; href=&quot;javascript:;&quot;&gt;RegExpSearch&lt;/a&gt;&lt;br&gt;&lt;input title=&quot;Case-sensitive searching&quot; class=&quot;chkOptionInput&quot; option=&quot;chkCaseSensitiveSearch&quot; type=&quot;checkbox&quot;&gt; &lt;a tiddlylink=&quot;CaseSensitiveSearch&quot; refresh=&quot;link&quot; class=&quot;tiddlyLink tiddlyLinkNonExisting&quot; title=&quot;The tiddler 'CaseSensitiveSearch' doesn't yet exist&quot; href=&quot;javascript:;&quot;&gt;CaseSensitiveSearch&lt;/a&gt;&lt;br&gt;&lt;input title=&quot;Enable animations&quot; class=&quot;chkOptionInput&quot; option=&quot;chkAnimate&quot; type=&quot;checkbox&quot;&gt; &lt;a tiddlylink=&quot;EnableAnimations&quot; refresh=&quot;link&quot; class=&quot;tiddlyLink tiddlyLinkNonExisting&quot; title=&quot;The tiddler 'EnableAnimations' doesn't yet exist&quot; href=&quot;javascript:;&quot;&gt;EnableAnimations&lt;/a&gt;&lt;br&gt;&lt;br&gt;&lt;hr&gt;Also see &lt;a tiddlylink=&quot;AdvancedOptions&quot; refresh=&quot;link&quot; class=&quot;tiddlyLink tiddlyLinkNonExisting shadow&quot; title=&quot;This shadow tiddler provides access to several advanced options&quot; href=&quot;javascript:;&quot;&gt;AdvancedOptions&lt;/a&gt;&lt;/div&gt;</description>
<link>null#SideBarOptions</link>
<pubDate>Tue, 29 Nov 2011 10:04:00 GMT</pubDate>

</item>
</channel>
</rss>
