Counting surfaces on Calabi-Yau fourfolds
演讲者
Martijn Kool
时间
2023年11月23日 16:00 至 17:00
地点
Online
线上
Zoom 638 227 8222
(BIMSA)
摘要
Building on work of Oh-Thomas, I will introduce invariants for counting surfaces on Calabi-Yau fourfolds. In a family, they are deformation invariant along Hodge loci. If non-zero, the variational Hodge conjecture for the family under consideration holds. Time permitting, I will discuss different compactifications of the moduli spaces of surfaces involved, and some (conjectural) relations under wall-crossing. Joint work with Y. Bae and H. Park.