Diagonal imbeddings in a normal matrix

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摘要

Let a normal matrix A∈Cn×n and μ1 a given point in its numerical range w(A) that is not an eigenvalue. In this paper, we study the problem of construction of an isometry W∈Cn×(n-k) (1⩽k

论文关键词：15A29,15A57,15A60,47A20,47B20,51M15,Normal matrices,Eigenvalues,Compressions,Inverse problem

论文评审过程：Available online 16 February 2013.

论文官网地址：https://doi.org/10.1016/j.amc.2012.12.071