Members’ Seminar

The CMSA Members’ Seminar will occur every Friday at 5pm in CMSA G10. The Schedule will be updated below.

 

Date Speaker Title/abstract
9/7/2018 Yang Zhou Title: Counting curves in algebraic geometry

Abstract: The classical mirror symmetry predicts that counting holomorphic curves on a Calabi-Yau manifold corresponds to the variation of Hodge structure of its mirror manifold. In this talk, we will briefly talk about various techniques of counting curves, from the perspective of algebraic geometry. We will go from “through two points there is a line” to counting curves on a quintic Calabi-Yau threefold.

9/14/2018 Yu-Wei Fan Title: BPS data, Riemann-Hilbert problem, and curve-counting invariants

Abstract: We start with the observation that linear maps between vector spaces give rise to the simplest example of family of BPS data. Then we introduce the Riemann-Hilbert problems associated to BPS data, and sketch the relation between solutions of these problems and curve-counting invariants on Calabi-Yau threefolds.

9/21/2018 Tsung-Ju
Title: Hypergeometric systems and relative cohomology
Abstract: The hypergeometric equations, which were studied by Euler, Gauss, Appell, Laurecilia, etc, and generalized by Gel’fand, Kapranov and Zelevinsky, areĀ ubiquitous in mathematics. In this talk, I will briefly talk about a cohomological interpretation of the hypergeometric system. This is a joint work with Dingxin Zhang.

 

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