Seminar in Real and Complex Geometry
Tuesday, February 18, 2020, 15:00-17:00,
Schreiber building, room 209
Andriy Regeta (University of Jena)
Is an affine spherical variety determined by its automorphism group?
Abstract
In this talk I will show that ''many" affine spherical varieties are
determined by their automorphism groups seen as ind-groups (in the
category of irreducible affine normal varieties). If the automorphism group
is considered only as an abstract group, the problem becomes much more
complicated. I will show that affine spherical surfaces and the affine n-space
are determined by their automorphism groups seen as abstract groups.
(This talk is based the following papers:
https://arxiv.org/abs/1911.10896
https://arxiv.org/abs/1805.03991
https://arxiv.org/abs/1912.01567).
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