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Vinberg pairs and Higgs bundles


Date: Thursday, January 26, 2023 14:00 - 16:00
Speaker: Oscar Garcia-Prada (ICMAT, Madrid)
Location: Heinzel Seminar Room (I21.EG.101), Office Building West
Series: Mathematics and CS Seminar
Host: Tamas Hausel
Contact: Birgit Oosthuizen-Noczil

A finite order automorphism of a complex semisimple Lie group determines  a cyclic grading of its Lie algebra. Vinberg's theory is concerned with the geometric invariant theory associated to this grading. Important examples include the case of involutions and representations of cyclic quivers. After reviewing some basic facts about Vinberg's theory, in this talk I will discuss about its relation to the geometry of  moduli spaces of Higgs bundles over a compact Riemann surface.

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