L^p John ellipsoids for negative indices
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:熊革(同济大学)
:2022-07-25 15:00
:腾讯会议ID:430-872-422(无密码)
报告人:熊革(同济大学)
时 间:7月25日下午15:00
地 点:腾讯会议ID:430-872-422(无密码)
内容摘要:
It is known that there exists a unique ellipsoid of maximal volume inside a convex body (a compact convex set with non-empty interiors) in R^n. This ellipsoid is called John ellipsoid (named after mathematician Fritz John), and has many applications in convex geometry, functional analysis, and optimizations. In 2005, E. Lutwak, D. Yang and G. Zhang defined the L_p John ellipsoids for p>0 and established their associated affine isoperimetric inequalities within the L_p Brunn-Minkowski theory.
In this talk, I will introduce our recent work on L_p John ellipsoids for p<0. This talk is based on the joint work with Xinbao Lu.
个人简介:
熊革,同济大学教授、博士生导师。主要研究凸体几何。他解决了Lp 静电容量的Minkowski 问题;提出并证明了“Lp transference principle”,对Lp Brunn-Minkowski型不等式进行了统一处理。他解决了凸体几何中的几个公开问题,包括锥体积泛函仿射极值的Lutwak-Yang-Zhang公开问题的2,3维情形;由截面确定凸体的Baker-Larman公开问题的2维情形;完全解决了G. Zhang关于凸体的John 椭球与对偶惯性椭球的一致性问题。他在国际纯数学重要期刊如JDG, Advances in Mathematics(3篇), JFA, CVPDE(2篇), IUMJ, IMRN, CAG, Israel Journal of Mathematics, Discrete and Computational Geometry, Bulletin of LMS等发表论文近30篇。他的研究成果或被写入凸体几何的经典教材中、或被发表在国际顶尖期刊上的文章多次引用和正面评价。
联系人:夏超
