Workshop on Recent Developments in Hodge Theory and O-minimality

Heights of Gross-Schoen and Ceresa Cycles

Abstract: In this talk, we construct a Zariski open dense locus in $M_g$ on which the Beilinson-Bloch height of the Gross-Schoen and Ceresa cycles is a Weil height, i.e. it has a lower bound and satisfies the Northcott property. This implies a generic positivity result of the heights of these cycles. This is joint work with Shouwu Zhang.

Date & Time

March 10, 2026 | 2:30pm – 3:30pm
Add to calendar 03/10/2026 14:30 03/10/2026 15:30 Workshop on Recent Developments in Hodge Theory and O-minimality use-title Topic: Heights of Gross-Schoen and Ceresa Cycles Speakers: Ziyang Gao, Institute for Advanced Study More: https://www.ias.edu/events/workshop-recent-developments-hodge-theory-and-o-minimality-5 Abstract: In this talk, we construct a Zariski open dense locus in $M_g$ on which the Beilinson-Bloch height of the Gross-Schoen and Ceresa cycles is a Weil height, i.e. it has a lower bound and satisfies the Northcott property. This implies a generic positivity result of the heights of these cycles. This is joint work with Shouwu Zhang. Simonyi Hall 101 a7a99c3d46944b65a08073518d638c23

Location

Simonyi Hall 101

Speakers

Ziyang Gao, Institute for Advanced Study

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