Time：November 20, Monday, 15:00-17:00

Venue： Lecture Hall

Speaker：Bohan Fang 方博汉 (Peking University）

Abstract: I will describe, via examples, the oscillatory and period integrals on the B-side of mirror symmetry. They correspond to Gromov-Witten primary and descendant invariants of Gamma-modified twisted Chern classes of the mirror coherent sheaves. The cycles for integration correspond to these mirror sheaves by homological mirror symmetry, and one may obtain higher genus invariants if using correct higher genus B-model integrands. I will also describe some applications to Gamma conjectures.

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