Time：9:00-12:00, Wednesday, February 26 2025
Tencent Meeting：409 9581 4561
Password: 583483
Host：Jintian Zhu, ITS
Speaker：Hongzhi Huang, Jinan University
Title：Nonnegative Ricci Curvature, Euclidean Volume Growth, and the Fundamental Groups of Open 4-Manifolds
Abstract：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.
