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The largest entry in the inverse of a Vandermonde matrix
Linear and Multilinear Algebra ( IF 1.1 ) Pub Date : 2021-05-06 , DOI: 10.1080/03081087.2021.1922337
Carlo Sanna 1 , Jeffrey Shallit 2 , Shun Zhang 2
Affiliation  

We investigate the size of the largest entry (in absolute value) in the inverse of certain Vandermonde matrices. More precisely, for every real b>1, let Mb(n) be the maximum of the absolute values of the entries of the inverse of the n×n matrix [bij]0i,j<n. We prove that limn+Mb(n) exists, and we provide some formulas for it.



中文翻译:

范德蒙矩阵逆矩阵中的最大项

我们调查了某些范德蒙矩阵的逆矩阵中最大条目的大小(绝对值)。更准确地说,对于每个真实的b>1个, 让b(n)是的倒数的项的绝对值的最大值n×n矩阵[b一世j]0一世,j<n. 我们证明n+b(n)存在,我们为它提供了一些公式。

更新日期:2021-05-06
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