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Universität Augsburg
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Professor Dr. Kai Zehmisch
Ruhr Universität Bochum
spricht am
Montag, 23. Juni 2025
um
16 Uhr s.t.
im
Raum 2004 (L1)
über das Thema:
Abstract: |
Contact structures on S^5 exhibit a unique behavior when compared to contact structures on other spheres. In this talk, after reviewing the general picture on spheres and the history, we present a proof that connected sums of Brieskorn contact structures on S^5, in general, are not of Brieskorn type again. The main tool is the mean Euler characteristic of symplectic homology, a general formula by van Koert—Kwon and explicit computations. |
Hierzu ergeht herzliche Einladung. |
Prof. Dr. Urs Frauenfelder |
Kaffee, Tee und Gebäck eine halbe Stunde vor Vortragsbeginn im Raum 2006 (L1).