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Polynomially Isometric Matrices in Low Dimensions
The American Mathematical Monthly ( IF 0.4 ) Pub Date : 2021-05-28 , DOI: 10.1080/00029890.2021.1898872
Cara D. Brooks 1 , Alberto A. Condori 1 , Nicholas Seguin 2
Affiliation  

Abstract

Given two d × d matrices, say A and B, when do p(A) and p(B) have the same “size” for every polynomial p? In this article, we provide definitive results in the cases d = 2 and d = 3 when the notion of size used is the spectral norm.



中文翻译:

低维多项式等距矩阵

摘要

给定两个d × d矩阵,比如说AB,什么时候p ( A ) 和p ( B ) 对于每个多项式p具有相同的“大小” ?在本文中,我们在d  = 2 和d  = 3的情况下提供了明确的结果,此时使用的大小概念是频谱范数。

更新日期:2021-05-28
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