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20230317 汤凯 On almost nonpositive k-Ricci curvature

发布时间:2023-03-15 14:51    浏览次数:    来源:

标题:On almost nonpositive k-Ricci curvature

报告人:汤凯(浙江师范大学)

邀请人:黄春乐、张雅山

时间:2023年3月17日,15:00-16:00

地点:数学院425

摘要:First, we introduce the background of k-Ricci curvature. Then we discuss some important results on Kahler manifolds with non-negative or non-positive k-Ricci curvature. Finally, we consider a natural notion of “almost nonpositive k-Ricci curvature”, which is weaker than the existence of a Kahler metric with nonpositive k-Ricci curvature. We prove that a compact Kahler manifold of almost non-positive k-Ricci curvature must have nef canonical line bundle.


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