The associative-commutative spectrum of a binary operation

Fuente: arXiv
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Main Authors: Huang, Jia, Lehtonen, Erkko
Format: Preprint
Published: 2022
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author Huang, Jia
Lehtonen, Erkko
author_facet Huang, Jia
Lehtonen, Erkko
contents We initiate the study of a quantitative measure for the failure of a binary operation to be commutative and associative. We call this measure the associative-commutative spectrum as it extends the so-called associative spectrum (also known as the subassociativity type), which measures the nonassociativity of a binary operation. In fact, the associative-commutative spectrum (resp. associative spectrum) is the cardinality of the symmetric (resp. nonsymmetric) operad obtained naturally from a groupoid (a set with a binary operation). In this paper we provide some general results on the associative-commutative spectrum, precisely determine this measure for certain binary operations, and propose some problems for future study.
format Preprint
id arxiv_https___arxiv_org_abs_2202_11826
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle The associative-commutative spectrum of a binary operation
Huang, Jia
Lehtonen, Erkko
Combinatorics
Rings and Algebras
We initiate the study of a quantitative measure for the failure of a binary operation to be commutative and associative. We call this measure the associative-commutative spectrum as it extends the so-called associative spectrum (also known as the subassociativity type), which measures the nonassociativity of a binary operation. In fact, the associative-commutative spectrum (resp. associative spectrum) is the cardinality of the symmetric (resp. nonsymmetric) operad obtained naturally from a groupoid (a set with a binary operation). In this paper we provide some general results on the associative-commutative spectrum, precisely determine this measure for certain binary operations, and propose some problems for future study.
title The associative-commutative spectrum of a binary operation
topic Combinatorics
Rings and Algebras
url https://arxiv.org/abs/2202.11826