时间：2025年2月26日(星期三)，9:00-12:00
Tencent Meeting：409 9581 4561
Password: 583483
主持人：Jintian Zhu, ITS
主讲人：Hongzhi Huang, Jinan University
报告主题：Nonnegative Ricci Curvature, Euclidean Volume Growth, and the Fundamental Groups of Open 4-Manifolds
报告摘要：Let M be a 4-dimensional open manifold with nonnegative Ricci curvature. We prove that if the universal cover of M has Euclidean volume growth, then the fundamental group is finitely generated and contains an abelian subgroup whose index is bounded by a universal contant. This is joint work with Xian-Tao Huang.
