报告题目: Numerical radius and higher dimensional numerical range of some operator products on bounded linear operators
报告人:齐霄霏 教授 (山西大学)
报告时间:2022年6月7日 (周二)上午 10:00-11:00
报告地点:腾讯会议:137 400 495
报告摘要: Let H be a complex Hilbert space and B(H) the algebra of all bounded linear operators on H. In this paper, we first give some useful properties of numerical radius and k-dimensional numerical range of some important operator products for any operators A,B in B(H). Based on these results, some preservers about numerical radius and k-dimensional numerical range of operator products are given, respectively.
报告人简介:齐霄霏,山西大学数学科学学院教授、博导。主要从事算子理论与算子代数,以及量子信息中量子关联等的基础理论研究。出版学术专著1部,在Journal of Functional Analysis,Science in China,Physical Review A,Science in China等知名学术刊物上发表学术论文100余篇。主持或完成国家自然科学基金项目4项、山西省优秀青年基金项目1项、其它省级项目2项,获山西省自然科学奖二等奖1项。曾获山西大学青年英才,山西省高校优秀青年学术带头人,山西省高校131领军人才工程-优秀中青年拔尖创新人才,三晋英才计划青年优秀人才,山西大学十佳青年教师等。