Siegel der Universität Augsburg

Universität Augsburg
Institut für Mathematik

Siegel der Universität Augsburg

 

Oberseminar Differentialgeometrie

 

Dr. Jens Reinhold
WWU Münster

 
spricht am
 
Montag, 31. Januar 2022
 
um
 
16:15 Uhr
 
im
 
1009/1010 bzw. ZOOM (hybride Veranstaltung)
 
über das Thema:
 

»Essentiality and simplicial volume of manifolds fibered over spheres«

Abstract:
This talk is based on joint work with T. Kastenholz and concerns the essentiality and simplicial volume of manifolds fibering over spheres. We realized that mapping tori of manifolds of odd dimension at least 7 with non-zero simplicial volume are very common. This contrasts the case of fiber bundles over a sphere of dimension d > 2: we observed that under mild assumptions on the fundamental group, it can be shown that their total spaces are rationally inessential. Finally, I will present two applications to positive scalar curvature and characteristic classes, respectively.

 

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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