论文标题
正常矩阵上的正线性图
Positive linear maps on normal matrices
论文作者
论文摘要
对于正线性图F和正常矩阵N,我们表明| f(n)|在F(| n |)的统一轨道中的一些简单线性组合界定。得出了几种优雅的尖锐不平等现象,尤其是对于Schur产品。
For a positive linear map F and a normal matrix N, we show that |F(N)| is bounded by some simple linear combinations in the unitary orbit of F(|N|). Several elegant sharp inequalities are derived, especially for the Schur product.