报告题目：Gauge Theories: Quivers, Dessins and Calabi-Yau
报告时间：2017-08-24 15:00 (星期四)
报告地点：天津大学北洋园校区32楼B140
报告人：何杨辉教授（City University, London&Nankai U.&U. of Oxfo

报告摘要：We discuss how bipartite graphs on Riemann surfaces capture a wealth of information about the physics and the mathematics of large classes of gauge theories, especially those arising from string theory in the context of AdS/CFT.The dialogue between the physics, the underlying algebraic geometry of Calabi-Yau varieties, the combinatorics of dimers and toric varieties, as well as the number theory of dessin d'enfants becomes particularly intricate and fruitful under this light.