Speaker：Ovidiu Munteanu（University of Connecticut）
Time：9:00-10:30 June 18, 2021
Room：Zoom Meeting: 944 7203 2228；Password: 202104
Typical comparison results in geometry require information on Ricci curvature. In dimension three, we show that this can sometimes be relaxed to scalar curvature. An example is a sharp upper bound for the bottom spectrum of the Laplacian on noncompact three-dimensional manifolds.
