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Universität Augsburg
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Universität Augsburg
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Peter Jossen
ETH Zürich
spricht am
Donnerstag, 29. Juni 2017
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10:00 Uhr
im
Raum 3008 (L1)
über das Thema:
| Abstract: |
| Exponential periods form a class of complex numbers containing the special values of the gamma and the Bessel functions, the Euler constant and other interesting numbers which are not expected to be periods in the usual sense of algebraic geometry. However, one can interpret them as coefficients of the comparison isomorphism between two cohomology theories associated to varieties with a potential: the de Rham cohomology of a connection with irregular singularities and the so-called “rapid decay” cohomology. In this series of two talks we will explain how this point of view allows one—following ideas of Kontsevich and Nori—to construct a Tannakian category of exponential motives and to produce Galois groups which conjecturally govern all algebraic relations among these numbers. We will rather focus on examples than on the more abstracts aspects of the theory. |
| Hierzu ergeht herzliche Einladung. |
| Prof. Dr. Marco Hien |
Kaffee, Tee und Gebäck eine halbe Stunde vor Vortragsbeginn im Raum 2006 (L1).