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Barcelona Algebraic Topology Group

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Barcelona Algebraic Topology Group
Friday's Topology Seminar 2016-2017 PDF Print E-mail

Date and Place: March 14th (Tuesday!) 12h, seminar room C1/028 CRM
Wolfgang Pitsch (UAB)
Variación de volumen para representaciones en SL_n(C).

Abstract: Explicaremos nuestro trabajo reciente con J. Porti en el que calculamos la variación del volumen de una representación del grupo fundamental de una variedad hiperbólica de dimensión 3 en SL_n(C).

Date and Place: March 31st 12h, seminar room CRM
M. Palmer (Mathematical Institute of the University of Bonn)
Twisted homological stability, partitioned braid groups and homological representations

Abstract: In this talk we will discuss a "twisted homological stability" result for configuration spaces, and more generally for moduli spaces of disconnected submanifolds of a fixed ambient manifold. When the submanifolds are 0-dimensional, this includes as a special case the (classifying spaces of the) partitioned braid groups of a surface. We will then discuss interesting examples of twisted coefficient systems, including ones related to homological representations of surface braid groups, such as the Lawrence-Krammer-Bigelow representations. (Part of the work presented is joint with TriThang Tran.)

See the calendar for upcoming events.


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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