报告题目:On some properties of convex bodies
主讲人:苑立平
报告时间:2024年5月18日9:35-10:05
报告地点:西安电子科技大学南校区网安大楼12楼A-1236
主讲人介绍:
苑立平,自然科学博士(德国),理学博士(中国),教授,博士生导师,河北师范大学数学科学学院院长;中国数学会副理事长、中国工业与应用数学学会理事、河北省数学会副理事长兼秘书长。主要从事离散与组合几何学领域的研究工作,主持国家自然科学基金项目7项、河北省杰出青年科学基金等省部级项目10余项,应邀在国际学术会议作报告20余次;入选教育部新世纪优秀人才、河北省高校百名优秀创新人才、河北省优秀回国人员、河北省教学名师,获霍英东教育基金会高等院校青年教师奖、河北省自然科学奖二等奖。
报告主要观点:
Let ℱ be a family of sets in Rd(always d ≥ 2). A set M⊂Rd is called ℱ-convex, if for any pair of distinct pointsx, y∈M,there is a set F∈ℱ such thatx, y∈F and F⊂M. A family ℱ of compact sets is called complete if ℱ contains all compact ℱ-convex sets. A convex body K is called selfish, if the family ℱK of all convex bodies similar to K is complete.
We say that a convex body C has the Rupert property if we can make a hole large enough in C to permit another copy of C to pass through.
In this talk we'll discuss the selfishness and Rupert property of some convex bodies.