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Geometry and Dynamics Seminar | Riemann-Hilbert problems from rank 3 WKB spectral networks

来源: 01-10

时间:Jan. 10, 13:30-15:30

地点:A3-1-101

组织者:Yu-Wei Fan

主讲人:Dongjian Wu (Tsinghua University)

Abstract

A class of Riemann-Hilbert problems arising in Donaldson-Thomas theory has been investigated by Bridgeland. These problems concern mappings from the complex plane to an algebraic torus that exhibit prescribed discontinuities along a set of rays. In this talk, I will begin by reviewing some basics of these Riemann-Hilbert problems, as well as the WKB spectral networks introduced by Gaiotto, Moore, and Neitzke. Building on the techniques for solving these Riemann-Hilbert problems from quadratic differentials, as developed by Allegretti and Bridgeland, I will next outline a strategy for constructing solutions to the Riemann-Hilbert problems from some rank 3 WKB spectral networks.

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