Siegel der Universität Augsburg

Universität Augsburg
Institut für Mathematik

 Siegel der Universität Augsburg

 

Oberseminar Differentialgeometrie

 

Herr M.Sc. Andreas Huber
Universität Augsburg
 
spricht am
 
Montag, 18. Dezember 2023
 
um
 
16 Uhr s.t.
 
im
 
Raum 2004 (L1)
 
über das Thema:
 

»Grothendieck-Witt-theory of pushouts«

Abstract:
It is well known that K- and L-theory don't satisfy excision. That means the K- and L-groups of pushout rings, e.g. group rings of an amalgated products, don't fit into a Mayer-Vietoris style sequence. However, in many cases the failure to satisfy excision is measured in an error "Nil"-term. Another way to state this result is that the canonical colimit-exchange map (of K- and L-spectra) admits a left inverse. We will give an generalization of this result for Grothendieck-Witt-theory (among other related theories) in the setting of Poincaré-categories.

 

Hierzu ergeht herzliche Einladung.
Prof. Dr. Wolfgang Steimle
 

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


[Impressum]      [Datenschutz]      wwwadm@math.uni-augsburg.de,     Mi 13-Dez-2023 09:59:04 MEZ