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【学术讲座-第79期“相约星期五”学术沙龙】Sub-Laplacian Comparison Theorem and Gradient Estimates on Contact Riemannian manifolds

发布日期:2026-03-19 12:08:59   来源:统计与数学学院   点击量:


报告主题:Sub-Laplacian Comparison Theorem and Gradient Estimates on Contact Riemannian manifolds

时间:202632010:00-11:00

地点:腾讯会议 会议号:875-6589-8473

报告人:杨桂林

 

报告内容简介:

In this paper, we first derive the Bochner-type formulas of the Hermitian-Tanno connection on a contact Riemannian manifold. Second, we prove a sub-Laplacian comparison theorem on a contact Riemannian manifold with bounded geometric conditions. Finally, we obtain the gradient estimates of a positive eigenfunction on a complete noncompact contact Riemannian manifolds which satisfies similar geometric conditions.

 

主讲人简介:

杨桂林,上海立信会计金融学院副教授。20136月毕业于复旦大学数学科学学院,获理学博士学位,20137月至20186月在华中科技大学任讲师,20162月至20182月在(意大利)巴西利卡塔大学做博士后,20209月至今在上海立信会计金融学院工作。主要研究方向为微分几何,目前已在Calculus of Variations and Partial Differential EquationsNagoya Mathematical JournalResults in MathematicsDifferential Geometry and its applications等重要期刊上发表学术论文十余篇。

 

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