A note on unitarily invariant norm inequalities for accretive-dissipative operator matrices

被引：0
|
作者：
Yang, Junjian [1 ,2 ]
机构：
[1] Guizhou Normal Univ, Sch Math Sci, Guiyang, Peoples R China
[2] Hainan Key Lab Computat Sci & Applicat, Haikou, Hainan, Peoples R China
来源：
ITALIAN JOURNAL OF PURE AND APPLIED MATHEMATICS | 2020年 / 43期
关键词：
unitarily invariant norms; accretive-dissipative operators; inequalities; DETERMINANTAL INEQUALITIES; SINGULAR-VALUES; REAL;
D O I：
暂无
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
In this paper, we present a unitarily invariant norm inequality for accretive-dissipative operator matrices, which is similar to an inequality obtained by Zhang in [J. Math. Anal. Appl. 412 (2014) 564-569]. Examples are provided to show that neither Zhang's inequality nor our inequality is uniformly better than the other.
引用
收藏
页码：206 / 212
页数：7
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