Mutual coherence (linear algebra)
id:
mutual-coherence-linear-algebra-294-18363598
title:
Mutual coherence (linear algebra)
text:
In linear algebra, the coherence or mutual coherence of a matrix A is defined as the maximum absolute value of the cross-correlations between the columns of A. Formally, let a 1 , … , a m ∈ C d be the columns of the matrix A, which are assumed to be normalized such that a i H a i = 1. The mutual coherence of A is then defined as A lower bound is A deterministic matrix with the mutual coherence almost meeting the lower bound can be constructed by Weil's theorem. This concept was reintroduced by D
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wiki
category slug:
encyclopedia
description:
Value in matrix theory
original url:
https://en.wikipedia.org/wiki/Mutual_coherence_(linear_algebra)
date created:
date modified:
2024-03-05T22:58:43Z
main entity:
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fields total:
13
integrity:
14