报告名称：Almost nonnegatively curved manifolds

报告专家： 葛剑

专家所在单位：北京师范大学

报告时间：2022年12月22日 14:00-16:00

报告地点：腾讯会议 876 551 578

专家简介：

葛剑，现任北京师范大学数学学院教授，博士生导师。主要研究领域是微分几何，已在Advances in Math.,Math. Ann., J. Geom. Anal., Pacific J. Math.等国际高水平数学学术期刊上发表论文多篇。

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报告摘要：

The first half of the talk will be a survey on the class of almost nonnegatively curved manifolds. Here the curvature means sectional curvature or Ricci curvature. Then I will talk about a recent joint work with CHEN Xiaoyang and HAN Fei, in which vanishing theorems on certain genus of these manifolds are proved under an extra necessary assumption on the fundamental group.