Williamson conjecture
id:
williamson-conjecture-289-303095
title:
Williamson conjecture
text:
In combinatorial mathematics, specifically in combinatorial design theory and combinatorial matrix theory the Williamson conjecture is that Williamson matrices of order n exist for all positive integers n .
Four symmetric and circulant matrices A , B , C , D are known as Williamson matrices if their entries are ± 1 and they satisfy the relationship where I is the identity matrix of order n . John Williamson showed that if A , B , C , D are Williamson matrices then is an Hadamard matrix of order
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wiki
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encyclopedia
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original url:
https://en.wikipedia.org/wiki/Williamson_conjecture
date created:
date modified:
2021-10-24T20:58:11Z
main entity:
{"identifier":"Q85815823","url":"https://www.wikidata.org/entity/Q85815823"}
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