If A(nxn)=(a(i,j)) is a Hermitian matrix, then show that for every i=1..n, there exists an eigenvalue λ of A, such that
|λ-a(i,i)|²+|a(i,i)|² <= |a(i,1)|²+|a(i,2)|²+...+|a(i,n)|²
收錄日期: 2021-04-24 10:16:09
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130409000051KK00380