当前位置: 网站首页 >> 科学研究 >> 学术交流 >> 正文

学术报告会:Singular Values, von Neumann Type Trace Inequality of Dual Quaternion Matrices, and Their Low-Rank Approximations

2023年10月09日 12:15  点击:[]

报告题目:Singular Values, von Neumann Type Trace Inequality of Dual Quaternion Matrices, and Their Low-Rank Approximations

  人:凌  晨    杭州电子科技大学理学院教授

报告时间:20231011日周三上午10:00

报告地点:S3-313

 

摘要:In this talk, we study some basic properties of dual quaternion matrices, which including singular values, polar decomposition, (appreciable) rank equalities and inequalities, the Courant-Fischer minimax principle, trace, and Weyl type monotonicity inequality. We extend the well-known von Neumann trace inequality for general dual quaternion matrices. Using the proposed trace inequality, we further obtain a Hoffman-Wielandt type inequality. We also propose two variants of the above two inequalities expressed by eigenvalues of dual quaternion Hermitian matrices, and establish an Eckart-Young type low-rank approximation theorem and reverse Eckart-Young Theorem.

 

个人简介:

凌晨,杭州电子科技大学理学院教授,博士生导师。现任中国经济数学与管理数学研究会副理事长,曾任中国运筹学会数学规划分会副理事长、中国运筹学会理事、中国系统工程学会理事、浙江省数学会常务理事。近十多年来,主持国家自科基金和浙江省自科基金各多项。Math. Program.SIAM J. on Optim.SIAM J.on Matrix Anal.and Appl. COAPJOTAJOGO等国内外重要刊物发表论文多篇。

 


上一条:学术报告会:Robust Fused Lasso Penalized Huber Regression with Nonasymptotic Property and Numerical Implementation
下一条:学术报告会:A Generalized Mountain Pass Lemma with a Closed Subset for Locally Lipschitz Functionals

关闭