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Barcelona Algebraic Topology Group

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Barcelona Algebraic Topology Group
Thomas Poguntke Memorial Workshop PDF Print E-mail
Written by Natàlia Castellana Vila   
Wednesday, 30 January 2019 20:56

Thomas Poguntke passed away on September 24, 2018, after a serious illness, just a few weeks after arriving in Barcelona. He was 28 years old and about to hand in his PhD thesis (University of Bonn) on higher Segal spaces, K-theory and Hall algebras.

This workshop is dedicated to his memory and to his mathematics, which will live on.
31 January-1 February, 2019, CRM


Tobias Dyckerhoff
Imma Gálvez-Carrillo
Gustavo Jasso
Joachim Kock
Mark Penney
Claudia Scheimbauer
Walker Stern
Tashi Walde
Mathew Young

See for more information.

Last Updated on Wednesday, 30 January 2019 21:09
Friday's Topology Seminar 2018-19 PDF Print E-mail
Written by Natàlia Castellana Vila   
Friday, 30 November 2018 14:12

Speaker: Jesper Moller (University of Copenhagen)
Title: Counting p-singular elements in finite groups of Lie type
Place: Room Seminar C3b
Date: Friday January 25, 12h-13h

Abstract: Let $G$ be a finite group and $p$ a prime number. We say that an element of $G$ is $p$-singular of its order is a power of $p$. Let $G_p$ be the {\em set\/} of $p$-singular elements in $G$, i.e. the union of the Sylow $p$-subgroups of $G$. In 1907, or even earlier, Frobenius proved that $|G|_p \mid |G_p|$: The number of $p$-singular elements in $G$ is divisible by the $p$-part of the order of $G$. The number of $p$-singular elements in a symmetric group is known. In this talk we discuss the number of $p$-singular elements in a finite (untwisted) group of Lie type in characteristic $p$.
The situation in the cross-characteristic case will maybe also be considered.

See the calendar for upcoming events.

Last Updated on Tuesday, 22 January 2019 10:56

This is the web site of the Algebraic Topology Team in Barcelona (Grup de Topologia Algebraica de Barcelona, 2014SGR-42 and Homotopy theory of algebraic structures, MTM2016-80439-P).

Our research interests include a variety of subjects in algebraic topology, group theory, homological algebra, and category theory. Here you will find information about us and our common activities.



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