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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
Speaker:
Wolfgang Pitsch (UAB)
Title:
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
Speaker:
M. Palmer (Mathematical Institute of the University of Bonn)
Title:
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.

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Presentation

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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