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Bruno Klingler: On the algebraicity of the Hodge locus

Time: Tue 2021-10-12 13.15 - 14.15

Location: Institut Mittag-Leffler, Seminar Hall Kuskvillan (alt. Zoom, meeting ID: 921 756 1880)

Lecturer: Bruno Klingler (Humboldt-Universität zu Berlin)

Abstract: Given a polarizable variation of Hodge structures on a smooth quasi projective variety S, Cattani–Deligne–Kaplan proved that its Hodge locus (the locus of closed points of S where exceptional Hodge tensors do appear) is a countable union of closed algebraic subvarieties of S. In this talk I will discuss when this Hodge locus is actually algebraic. Joint work with Baldi and Ullmo.

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Belongs to: Department of Mathematics
Last changed: Oct 10, 2021