Some inequalities related to \(2\times 2\) block sector partial transpose matrices

[摘要] In this article, two inequalities related to $2\times 2$ block sector partial transpose matrices are proved, and we also present a unitarily invariant norm inequality for the Hua matrix which is sharper than an existing result.

[学科分类] 电力

[关键词] Sector partial transpose matrices;Unitarily invariant norms;Linear maps