Time: 2022.06.02, 11:00-12:00 Venue: Zoom Meeting ID: 271 534 5558 Passcode: YMSCSpeaker: Prof.Ni Lei(UCSD)
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...