题目：Stability of Serrin Overdetermined Problem
报告人：李沁峰 副教授（湖南大学）
地点：致远楼101室
时间：2026年9月11日 星期五 09：00-10：00
Abstract：In my earlier work with Weihong Xie and Hang Yang, we posed a stability question for Serrin’s overdetermined problem under Dirichlet perturbations and proved that the answer is negative in dimensions $n\ge3$. The present talk resolves the question in the planar convex class and develops a sharp quantitative theory without any a priori geometric nondegeneracy and smoothness assumption. The convexity assumption cannot be removed.
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