Skew and direct sums of permutations
id:
skew-and-direct-sums-of-permutations-304-15967478
title:
Skew and direct sums of permutations
text:
In combinatorics, the skew sum and direct sum of permutations are two operations to combine shorter permutations into longer ones. Given a permutation π of length m and the permutation σ of length n, the skew sum of π and σ is the permutation of length m + n defined by and the direct sum of π and σ is the permutation of length m + n defined by
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https://en.wikipedia.org/wiki/Skew_and_direct_sums_of_permutations
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2023-09-24T09:38:10Z
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{"identifier":"Q7534792","url":"https://www.wikidata.org/entity/Q7534792"}
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