Academics

Moduli Space and Related Topics | Degeneration of Hodge structures and cubic hypersurfaces

Time:Thur., 3:30-5:00 pm, June 22, 2023

Venue:Jinchunyuan West Building, Floor 3

Organizer:Xiang He, Chenglong Yu Dingxin Zhang, Jie Zhou

Speaker:Renjie Lyu 吕人杰 中科院 AMSS, Postdoc

Abstract 

The degeneration of Hodge structures is related to how a smooth projective variety degenerate. And it provides a Hodge-theoretic perspective to compactify moduli spaces. In this talk, I will focus on a particular degeneration of cubic hypersurfaces and study the associated limiting mixed Hodge structure. It generalizes some results in Radu Laza’s and Brendan Hassett’s works on cubic fourfolds. This is a joint work with Zhiwei Zheng.

DATEJune 22, 2023
SHARE
Related News
    • 0

      Moduli Spaces and Related Topics | Hodge properties of confluent hypergeometric connections

      Abstract:Sabbah and Yu computed the irregular Hodge numbers associated with hypergeometric connections. In this talk, we introduce a new approach for hypergeometric connections whose defining parameters are rational numbers. Our method relies on a geometric interpretation of hypergeometric connections, which enables us to describe the irregular Hodge filtrations explicitly and derive several ar...

    • 1

      On attractor points on the moduli space of Calabi-Yau threefolds

      AbstractWe briefly review the origin in physics of attractor points on the moduli space of Calabi-Yau threefolds. We turn to their mathematical interpretation as special cases of Hodge loci. This leads to fascinating conjectures on the modularity of the Calabi-Yau threefolds at these points in terms of their periods and L-functions. For hypergeometric one-parameter families of Calabi-Yau threef...