Siegel der Universität Augsburg

Universität Augsburg
Institut für Mathematik

Siegel der Universität Augsburg

 

Oberseminar Differentialgeometrie

 

Dr. Fabian Hebestreit
Universität Bonn

 
spricht am
 
Montag, 23. Januar 2017
 
um
 
16:00 Uhr
 
im
 
Raum 2004 (L1)
 
über das Thema:
 

»Tautological characteristic classes of aspherical manifolds«

Abstract:
I will present a vanishing theorem for tautological characteristic classes of manifold bundles with high dimensional, aspherical fibres and a few surprising consequences. The result is in stark contrast to the work of Galatius and Randal-Williams, who described a sizeable part of the cohomology ring of the classifying space of several diffeomorphism groups using such classes. Along the way I will review the known computations of diffeomorphism groups of aspherical manifolds. The project is joint work with Markus Land, Wolfgang Lück and Oscar Randal-Williams.

 

Hierzu ergeht herzliche Einladung.
Prof. Dr. Bernhard Hanke
 

Kaffee, Tee und Gebäck eine halbe Stunde vor Vortragsbeginn im Raum 2006 (L1).



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