张云简介

◇个人简介

张云，男, 1982年8月出生，中共党员，江苏镇江人，教授，理学博士，硕士生导师.

学术兼职:安徽省数学会理事，安徽省工业与应用数学会理事，美国《数学评论》（Mathematical Reviews）评论员.

◇教育经历

2011/09-2014/06 华东师范大学，运筹学与控制论，理学博士
‎2004/09-2007/06 陕西师范大学，基础数学，理学硕士

2000/09-2004/07 盐城师范学院，数学与应用数学（师范），理学学士

◇主要研究方向

矩阵分析；组合矩阵论；算子理论

◇教学情况

• 本科课程:数学分析，常微分方程，泛函分析.
‎• 研究生课程:矩阵分析，代数学，组合矩阵论，泛函分析.
‎• 教学改革:

主持省级精品开放课程项目：“常微分方程”(2017kfk042)

主持省级示范课：“常微分方程”(2020SJJXSFK2157)

◇科研情况

• 主要科研项目及科研获奖

v 安徽省高校自然科学研究重大项目:矩阵分析中若干特征值(奇异值)问题的研究,  KJ2021ZD0058,在研.

v 安徽省自然科学基金青年项目: 优超理论在矩阵不等式研究中的应用,1708085QA05,已结题.

v 淮北师范大学科学研究先进个人(2012-2016年)

v 安徽省第八届自然科学优秀学术论文三等奖

• 发表的主要论文

v Zhang Yun*, Zhang Haibo and Shi Shuo. Equivalence on Hiroshima’s type inequalities for positive semidefinite block matrices, Journal of Mathematical Inequalities, 2023, 17, no.1, 341-347.

v Shi Shuo, ZhangYun*. Further norm inequalities for sums of operators, Linear Algebra and its Applications, 2023, 658: 250-261.

v Lin Jianfu, Zhang Yun*. A proof of Lee's conjecture on the sum of absolute values of matrices. Journal of Mathematical Analysis and Applications, 2022, 516, no. 2, Paper No. 126542.

v Wang Benju, Zhang Yun*. Fischer type log-majorization of singular values on partitioned positive semidefinite matrices, Journal of Function Spaces, 2021, Article ID 7211498, 5pages.

v Zhang Yun. Interpolating the Rotfel’d inequality for unitarily invariant norms, Linear Algebra and its Applications, 2019, 574: 60-66.

v Zhang Yun. Some spectral norm inequalities on Hadamard products of nonnegative matrices, Linear Algebra and its Applications, 2018, 556: 162-170.

v Zhang Yun. Inequalities between |A|+|B| and |A*|+|B*| , Electronic Journal of Linear Algebra, 2018, 34: 561-565.

v Chen Dongjun, Zhang Yun*. Weak log-majorization inequalities of singular values between normal matrices and their absolute values, Bulletin of the Iranian Mathematical Society, 2016, 42(1): 143-153.

v Chen Dongjun, Zhang Yun*. Singular Value Inequalities for Real and Imaginary Parts of Matrices, Filomat, 2016, 30(10): 2623-2629.

v Chen Dongjun, Zhang Yun*. On the spectral radius of Hadamard products of nonnegative matrices, Banach Journal of Mathematical Analysis, 2015, 9(2): 127-133.

v Zhang Yun. Unitarily invariant norm inequalities for accretive-dissipative operator matrices, Journal of Mathematical Analysis and Applications, 2014, 412(1): 564-569.

v Zhang Yun. Singular value inequalities of Lewent type, Taiwanese Journal of Mathematics, 2014, 18(3)：895-907.

v Zhang Yun. Eigenvalue majorization inequalities for positive semidefinite block matrices and their blocks, Linear Algebra and Its Applications, 2014, 446: 216-223.

v Zhang Yun*, Zhong Jin. 2014. Possible numbers of nonzero entries in a matrix with a given term rank, Electronic Journal of Linear Algebra, 2014, 27: 258-271.

v Zhang Yun. On the angle and the minimal angle between subspaces, Linear & Multilinear Algebra, 2013, 61(12): 1660-1667.

注：“*”表示为论文通讯作者.

• 联系方式

地址：安徽省淮北市沱河路淮北师范大学数学科学学院

邮编：235000；E-mail：zhangyunmaths@163.com