<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Talks and events | Rogelio Pérez Buendía</title><link>https://www.cimat.mx/~rogelio.perez/en/events/</link><atom:link href="https://www.cimat.mx/~rogelio.perez/en/events/index.xml" rel="self" type="application/rss+xml"/><description>Talks and events</description><generator>HugoBlox Kit (https://hugoblox.com)</generator><language>en-us</language><lastBuildDate>Fri, 24 Apr 2026 12:00:00 -0600</lastBuildDate><image><url>https://www.cimat.mx/~rogelio.perez/media/icon_hu_fb2e9242749eed43.png</url><title>Talks and events</title><link>https://www.cimat.mx/~rogelio.perez/en/events/</link></image><item><title>p-adic numbers as a multiscale observation lens — IIMAS–UNAM Yucatán seminar</title><link>https://www.cimat.mx/~rogelio.perez/en/events/seminario-iimas-unam-yucatan-2026/</link><pubDate>Fri, 24 Apr 2026 12:00:00 -0600</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/seminario-iimas-unam-yucatan-2026/</guid><description>&lt;p&gt;Seminar at &lt;strong&gt;IIMAS–UNAM Yucatán&lt;/strong&gt;, &lt;strong&gt;24 April 2026&lt;/strong&gt;, 12:00–13:00.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Slides:&lt;/strong&gt;
.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Certificate:&lt;/strong&gt; On file (certificate of presentation dated 23 April 2026; not available for public download).&lt;/p&gt;
&lt;p&gt;Full abstract (Spanish):
.&lt;/p&gt;</description></item><item><title>Geometry of hierarchy — FMAT–CIMAT Colloquium (22 April 2026)</title><link>https://www.cimat.mx/~rogelio.perez/en/events/coloquio-fmat-cimat-2026-abril/</link><pubDate>Wed, 22 Apr 2026 11:00:00 -0600</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/coloquio-fmat-cimat-2026-abril/</guid><description>&lt;p&gt;Talk at the &lt;strong&gt;FMAT–CIMAT Colloquium&lt;/strong&gt; (UADY–CIMAT Mérida), &lt;strong&gt;Wednesday 22 April 2026&lt;/strong&gt;, &lt;strong&gt;11:00&lt;/strong&gt;, &lt;strong&gt;Room C8&lt;/strong&gt;, Faculty of Mathematics, UADY (Mérida, Yucatán).&lt;/p&gt;
&lt;p&gt;Full programme text and abstract (Spanish):
. &lt;strong&gt;Talk video:&lt;/strong&gt;
.&lt;/p&gt;</description></item><item><title>"How do multiplication tables look?" — Sierra Papacal primary school (2026)</title><link>https://www.cimat.mx/~rogelio.perez/en/events/curvas-tablas-multiplicar-2026/</link><pubDate>Fri, 20 Mar 2026 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/curvas-tablas-multiplicar-2026/</guid><description>&lt;h2 id="what-this-event-is"&gt;What this event is&lt;/h2&gt;
&lt;p&gt;Outreach mathematics talk &lt;em&gt;&lt;strong&gt;How do multiplication tables look? Curiosities and secrets of algebra and geometry&lt;/strong&gt;&lt;/em&gt;, delivered at &lt;strong&gt;Sierra Papacal primary school&lt;/strong&gt; (Mérida area, Yucatán) on &lt;strong&gt;20 March 2026&lt;/strong&gt;, within the &lt;strong&gt;Divulgando-Mateamor&lt;/strong&gt; programme with &lt;strong&gt;MateMayab&lt;/strong&gt; (CIMAT-Mérida) and the &lt;strong&gt;CIMAT–PCTY&lt;/strong&gt; ecosystem.&lt;/p&gt;
&lt;h2 id="talk-outline"&gt;Talk outline&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;Motivation:&lt;/strong&gt; multiplication tables are not only rote memorisation—they can be &lt;strong&gt;drawn&lt;/strong&gt; and reveal unexpected shapes.&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;Core ideas:&lt;/strong&gt; &lt;strong&gt;patterns&lt;/strong&gt;, &lt;strong&gt;symmetry&lt;/strong&gt;, a geometric reading of simple operations, and &lt;strong&gt;curves&lt;/strong&gt; that appear when products are plotted in different representations (related to the earlier outreach talk
on the Spanish site).&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;Style:&lt;/strong&gt; primary-school friendly language; emphasis on exploration, visual examples and participation.&lt;/li&gt;
&lt;/ul&gt;
&lt;h2 id="practical-information"&gt;Practical information&lt;/h2&gt;
&lt;table&gt;
&lt;thead&gt;
&lt;tr&gt;
&lt;th&gt;&lt;/th&gt;
&lt;th&gt;&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;When&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;20 March 2026&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Where&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Sierra Papacal primary school, Yucatán&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Format&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;In-school outreach visit&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Speaker&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Jesús Rogelio Pérez Buendía (CIMAT-Mérida)&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;h2 id="slides-and-online-context"&gt;Slides and online context&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;Slides:&lt;/strong&gt; the &lt;strong&gt;Presentation (PDF)&lt;/strong&gt; button opens this site’s &lt;strong&gt;built-in viewer&lt;/strong&gt; (page-by-page). The file &lt;code&gt;slides.pdf&lt;/code&gt; must be deployed at &lt;code&gt;static/slides/curvas-tablas-multiplicar-2026/&lt;/code&gt; on the server.&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;Broader outreach context&lt;/strong&gt; (MateMayab, other school visits): see the
section (English navigation; underlying event pages may remain in Spanish).&lt;/li&gt;
&lt;/ul&gt;
&lt;h2 id="related-activities-march-2026-cycle"&gt;Related activities (March 2026 cycle)&lt;/h2&gt;
&lt;p&gt;The same outreach cycle around &lt;strong&gt;CIMAT-Mérida&lt;/strong&gt; and &lt;strong&gt;PCTY&lt;/strong&gt; included other visits (e.g. &lt;strong&gt;Ateneo de Progreso&lt;/strong&gt; primary school); photos and narrative are on the Spanish
hub alongside this talk.&lt;/p&gt;
&lt;p&gt;Full authoritative wording of this event page is kept in &lt;strong&gt;Spanish&lt;/strong&gt;:
.&lt;/p&gt;</description></item><item><title>From preimage trees to modular dynamics — CIMAT Mathematics showcase 2026</title><link>https://www.cimat.mx/~rogelio.perez/en/events/seminario-muestrario-cimat-2026/</link><pubDate>Fri, 27 Feb 2026 09:30:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/seminario-muestrario-cimat-2026/</guid><description>&lt;p&gt;Talk at the &lt;strong&gt;CIMAT Mathematics showcase&lt;/strong&gt;, CIMAT-Mérida, &lt;strong&gt;27 February 2026&lt;/strong&gt;, 9:30–10:30, Room K201.&lt;/p&gt;
&lt;p&gt;Full description (Spanish):
.&lt;/p&gt;</description></item><item><title>Hierarchical dynamics in genetic regulatory networks via p-adic rational approximations — LVIII SMM 2025</title><link>https://www.cimat.mx/~rogelio.perez/en/events/charla-smm-2025-dinamica-redes-genicas/</link><pubDate>Thu, 23 Oct 2025 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/charla-smm-2025-dinamica-redes-genicas/</guid><description>&lt;p&gt;Talk at the &lt;strong&gt;LVIII National Congress of the Mexican Mathematical Society&lt;/strong&gt; (2025), session &lt;em&gt;Conexiones p-ádicas: Análisis, Álgebra, Geometría y Aplicaciones&lt;/em&gt; (BUAP, Puebla). Arabidopsis as motivating case; local p-adic rational interpolations; stability index μ. With Víctor Nopal Coello.&lt;/p&gt;</description></item><item><title>Dynamic Topoi and Temporal Sites: A Categorical Framework for Arithmetic Dynamics — LVIII SMM 2025</title><link>https://www.cimat.mx/~rogelio.perez/en/events/charla-smm-2025-topoi-dinamica-aritmetica/</link><pubDate>Wed, 22 Oct 2025 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/charla-smm-2025-topoi-dinamica-aritmetica/</guid><description>&lt;p&gt;Talk at the &lt;strong&gt;58th National Congress of the Mexican Mathematical Society&lt;/strong&gt; (20–24 October 2025, BUAP, Puebla), &lt;strong&gt;Number Theory&lt;/strong&gt; session.&lt;/p&gt;
&lt;p&gt;The previous page on this site used a preliminary-program title (“A bridge towards a Dynamic Hodge Theory”) that was &lt;strong&gt;not&lt;/strong&gt; given as the official talk title; the title above matches the SMM speaker certificate.&lt;/p&gt;</description></item><item><title>ARQUIBIO 2024 — Tercer Encuentro de Biología Matemática y Métodos no Arquimedianos</title><link>https://www.cimat.mx/~rogelio.perez/en/events/arquibio-2024/</link><pubDate>Sun, 03 Nov 2024 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/arquibio-2024/</guid><description>&lt;p&gt;
— CIMAT-Mérida, IIMAS-Mérida. Sotuta de Peón, Yucatán. Modalidad híbrida.&lt;/p&gt;</description></item><item><title>GEOTOP-A 2024 — International Conference on Applications of Geometry and Topology</title><link>https://www.cimat.mx/~rogelio.perez/en/events/geotop-2024/</link><pubDate>Mon, 08 Jan 2024 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/geotop-2024/</guid><description>&lt;p&gt;GEOTOP-A 2024 — International Conference on Applications of Geometry and Topology (8–13 January 2024). I served as &lt;strong&gt;co-organizer&lt;/strong&gt; and &lt;strong&gt;session chair&lt;/strong&gt; for the session &lt;em&gt;Application of Geometry and Topology to Biology&lt;/em&gt;. I did &lt;strong&gt;not&lt;/strong&gt; give a talk at this conference.&lt;/p&gt;</description></item><item><title>Elliptic Curves Course (CCE 2023)</title><link>https://www.cimat.mx/~rogelio.perez/en/events/cce2023/</link><pubDate>Sat, 01 Jul 2023 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/cce2023/</guid><description>&lt;p&gt;&lt;strong&gt;Elliptic Curves&lt;/strong&gt; course in the joint graduate program (UNAM–UADY), 2023 (CCE 2023). Taught online.&lt;/p&gt;</description></item><item><title>Coloquio de Dinámica p-ádica y Aritmética (CDPA 2023)</title><link>https://www.cimat.mx/~rogelio.perez/en/events/cdpa2023/</link><pubDate>Sun, 01 Jan 2023 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/cdpa2023/</guid><description>&lt;p&gt;Material y carteles del coloquio. Enlace externo:
.&lt;/p&gt;</description></item><item><title>ARQUIBIO 2022 — Segundo Encuentro de Biología Matemática y Métodos no Arquimedianos</title><link>https://www.cimat.mx/~rogelio.perez/en/events/arquibio-2022/</link><pubDate>Mon, 21 Nov 2022 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/arquibio-2022/</guid><description>&lt;p&gt;
— CIMAT-Mérida, IIMAS-Mérida. Sotuta de Peón, Yucatán.&lt;/p&gt;</description></item><item><title>p-adic dynamics seminar</title><link>https://www.cimat.mx/~rogelio.perez/en/events/seminario-dinamica-p-adica/</link><pubDate>Sat, 01 Jan 2022 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/seminario-dinamica-p-adica/</guid><description>&lt;p&gt;&lt;strong&gt;p-adic dynamics&lt;/strong&gt; seminar at CIMAT Mérida. Topics: dynamics of rational maps over p-adic fields, Berkovich spaces, applications to number theory and arithmetic geometry.&lt;/p&gt;
&lt;p&gt;
.&lt;/p&gt;</description></item><item><title>Escuela Internacional de Investigación CIMPA 2021 — Hodge Theory and p-adic Hodge Theory</title><link>https://www.cimat.mx/~rogelio.perez/en/events/cimpa-2021/</link><pubDate>Mon, 02 Aug 2021 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/cimpa-2021/</guid><description>&lt;p&gt;
— Hodge Theory and p-adic Hodge Theory. CIMAT-Guanajuato, virtual.&lt;/p&gt;</description></item><item><title>Maya (junior) Arithmetic Seminar</title><link>https://www.cimat.mx/~rogelio.perez/en/events/seminario-maya-aritmetica/</link><pubDate>Fri, 01 Jan 2021 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/seminario-maya-aritmetica/</guid><description>&lt;p&gt;&lt;strong&gt;Maya (junior) Arithmetic Seminar&lt;/strong&gt;: number theory and arithmetic seminar for students, organized at CIMAT Mérida.&lt;/p&gt;
&lt;p&gt;
.&lt;/p&gt;</description></item><item><title>Escuela de Verano Virtual CIMAT-Mérida 2020 — Grupos de Galois y grupos fundamentales</title><link>https://www.cimat.mx/~rogelio.perez/en/events/escuela-verano-cimat-2020/</link><pubDate>Mon, 13 Jul 2020 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/escuela-verano-cimat-2020/</guid><description>&lt;p&gt;
. Mini-curso impartido.
.&lt;/p&gt;</description></item><item><title>ARQUIBIO 2019 — 1er Encuentro de Biomatemáticas y Métodos p-ádicos</title><link>https://www.cimat.mx/~rogelio.perez/en/events/arquibio-2019/</link><pubDate>Mon, 11 Nov 2019 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/arquibio-2019/</guid><description>&lt;p&gt;
— CIMAT-Mérida.
.&lt;/p&gt;</description></item><item><title>Ciencia de datos (Mérida 2019)</title><link>https://www.cimat.mx/~rogelio.perez/en/events/ciencia-datos-merida-2019/</link><pubDate>Mon, 01 Apr 2019 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/ciencia-datos-merida-2019/</guid><description>&lt;p&gt;Talk &lt;strong&gt;data science&lt;/strong&gt; in Mérida (April 2019). Materials: slides (Keynote/PDF) and LaTeX notes.&lt;/p&gt;</description></item><item><title>Jornada de Álgebra 2018 (UADY)</title><link>https://www.cimat.mx/~rogelio.perez/en/events/jornada-algebra-uady-2018/</link><pubDate>Sun, 01 Apr 2018 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/jornada-algebra-uady-2018/</guid><description>&lt;p&gt;Conferencia en la &lt;strong&gt;Jornada de Álgebra 2018&lt;/strong&gt;, Facultad de Matemáticas, UADY (abril 2018).&lt;/p&gt;</description></item><item><title>Third PRIMA Congress 2017 — A One Parameter Family of K3-Surfaces and a Monodromy Criterion for Good Reduction</title><link>https://www.cimat.mx/~rogelio.perez/en/events/prima-2017/</link><pubDate>Tue, 15 Aug 2017 00:00:00 +0000</pubDate><guid>https://www.cimat.mx/~rogelio.perez/en/events/prima-2017/</guid><description>&lt;p&gt;
, Oaxaca, México. Conferencia internacional.&lt;/p&gt;</description></item></channel></rss>