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2023.06.19,李同柱,教授,北京理工大学,Complete self-shrinkers with bounded the second fundamental form in R^n+1

微分几何学术报告

 

 

报告题目:Complete self-shrinkers with bounded the second fundamental form in R^n+1

 

 

报告人:李同柱教授  北京理工大学

 

 

报告摘要:Let X: M^n → R^n+1 be a complete properly immersed self-shrinker. In this paper, we prove that if the squared norm of the second fundamental form S satisfies 1 ≤ S < C for some constant C, then S = 1. Further we classify the n-dimensional complete proper self-shrinkers with constant squared norm of the second fundamental form in R^n+1, which solve the conjecture proposed by Q.M. Cheng and G. Wei when the self-shrinker has polynomial volume growth. This work was jointed with Chen Yayun.

 

 

时间:2023619日(星期一)上午1000 — 1100

 

 

地点:逸夫楼 1537

 

报告人简介:

李同柱,教授,博士生导师。于2005北京大学数学科学学院获博士学位,主要从事微分几何方向的研究。研究领域是子流形几何和大范围黎曼几何。在Adv. Math.Math. Z.等国内外数学专业期刊上共发表四十多篇学术论文,解决了子流形几何中一系列问题。主持4项国家自然科学基金,参与4项国家自然科学基金项目。参与科技部重点项目一项。获教育部2014年度高等学校科学研究优秀成果奖(自然类)一等奖。