报告题目：A new proof of Huber’s theorem on differential geometry in the large

报告人：周晨（上海大学）

时间：2023年11月09日 10：00-11：00

地点：物质科研楼C1124

摘要：

In this talk I will give a new, and shorter, proof of Huber’s theorem which affirms that for a connected open Riemann surface endowed with a complete conformal Riemannian metric, if the negative part of its Gaussian curvature has finite mass, then the Riemann surface is homeomorphic to the interior of a compact surface with boundary, and thus it has finite topological type. I will also show that such Riemann surface is parabolic.