报告名称：Universal Inequalities of Laplacian on Riemannian Manifolds and Extensions

报告专家： 曾令忠

专家所在单位：江西师范大学

报告时间：2021年5月17日 10:00-11:00

报告地点：数学与统计学学院201学术报告厅

或数学与统计学学院203学术报告厅

专家简介：曾令忠，博士毕业于日本佐贺大学，现为江西师范大学数学与统计学院副教授，研究生导师。长期从事微分几何中特征值问题的研究，在Commun. Contemp. Math., J. Math. Phys., J. Geom. Phys., Kyushu J. Math.等国内外重要学术期刊上发表论文近20篇，2020年获得江西省自然科学三等奖。

报告摘要：In this talk, we would like to review some universal bounds of Laplacian on Riemannian Manifolds. Furthermore, we consider the eigenvalue of Laplacian on the closed Riemannian manifolds. As some applications, we give a very sharp upper bound for the second eigenvalue of Laplacian on the isoparametric hypersurface embeded in the unit sphere. Finally, we also give some universal bounds of Xin Laplacian on the translators in the sense of MCF. This is a work joint with Zhouyuan Zeng.

邀请人：毛井

（审核：郑大彬）