In this talk, we discuss the global behaviors of the heat kernel and Green's function one the complete manifold with nonnegative Ricci curvature. we first obtain sharp two-side Gaussian bounds for the heat kernel that sharpens the well-known Li-Yau’s two-side bounds, based on the sharp Li-Yau’s Harnack inequality on such a manifold. As an application, we get the optimal gradient and Laplacian...
Yi Lai 赖仪Stanford UniversityYi Lai is currently a Szego assistant professor at Stanford University. She obtained her bachelor's degree from Peking University in 2016. She obtained her P.h.D from UC Berkeley in 2021 under the supervision of Richard Bamler. Her research focuses on geometric analysis and Ricci flow.AbstractRicci flow is an important tool in geometric analysis. There have been re...