报告人：Ovidiu Munteanu（University of Connecticut）
时间：2021年6月18日, 周五，9:00-10:30
地点： Zoom会议号: 944 7203 2228；密码: 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.
