A computational approach to analyze the Hadamard quasigroup product

Based on the binary product described by any Latin square, the Hadamard quasigroup product is introduced in this paper as a natural generalization of the classical Hadamard product of matrices. The successive iteration of this new product is endowed with a cyclic behaviour that enables one to define...

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Main Authors: Raúl M. Falcón, Víctor Álvarez, José Andrés Armario, María Dolores Frau, Félix Gudiel, María Belén Güemes
Format: Article
Language:English
Published: AIMS Press 2023-03-01
Series:Electronic Research Archive
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/era.2023164?viewType=HTML
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author Raúl M. Falcón
Víctor Álvarez
José Andrés Armario
María Dolores Frau
Félix Gudiel
María Belén Güemes
author_facet Raúl M. Falcón
Víctor Álvarez
José Andrés Armario
María Dolores Frau
Félix Gudiel
María Belén Güemes
author_sort Raúl M. Falcón
collection DOAJ
description Based on the binary product described by any Latin square, the Hadamard quasigroup product is introduced in this paper as a natural generalization of the classical Hadamard product of matrices. The successive iteration of this new product is endowed with a cyclic behaviour that enables one to define a pair of new isomorphism invariants of Latin squares. Of particular interest is the set of Latin squares for which this iteration preserves the Latin square property, which requires the existence of successive localized Latin transversals within the Latin square under consideration. In order to enumerate and classify, up to isomorphism, these Latin squares, we propose a computational algebraic geometry approach based on the computation of reduced Gröbner bases. To illustrate this point, we obtain the classification of the sought Latin squares, for order up to six, by using the open computer algebra system for polynomial computations Singular.
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spelling doaj.art-b5ecfe3f8c624aa6b241e2f41f42d4e42023-05-09T01:28:35ZengAIMS PressElectronic Research Archive2688-15942023-03-013163245326310.3934/era.2023164A computational approach to analyze the Hadamard quasigroup productRaúl M. Falcón 0Víctor Álvarez1José Andrés Armario2María Dolores Frau3Félix Gudiel 4María Belén Güemes5Department of Applied Mathematics I, Universidad de Sevilla, SpainDepartment of Applied Mathematics I, Universidad de Sevilla, SpainDepartment of Applied Mathematics I, Universidad de Sevilla, SpainDepartment of Applied Mathematics I, Universidad de Sevilla, SpainDepartment of Applied Mathematics I, Universidad de Sevilla, SpainDepartment of Applied Mathematics I, Universidad de Sevilla, SpainBased on the binary product described by any Latin square, the Hadamard quasigroup product is introduced in this paper as a natural generalization of the classical Hadamard product of matrices. The successive iteration of this new product is endowed with a cyclic behaviour that enables one to define a pair of new isomorphism invariants of Latin squares. Of particular interest is the set of Latin squares for which this iteration preserves the Latin square property, which requires the existence of successive localized Latin transversals within the Latin square under consideration. In order to enumerate and classify, up to isomorphism, these Latin squares, we propose a computational algebraic geometry approach based on the computation of reduced Gröbner bases. To illustrate this point, we obtain the classification of the sought Latin squares, for order up to six, by using the open computer algebra system for polynomial computations Singular.https://www.aimspress.com/article/doi/10.3934/era.2023164?viewType=HTMLhadamard productquasigrouplatin squarelatin transversalisomorphismcomputer algebra system
spellingShingle Raúl M. Falcón
Víctor Álvarez
José Andrés Armario
María Dolores Frau
Félix Gudiel
María Belén Güemes
A computational approach to analyze the Hadamard quasigroup product
Electronic Research Archive
hadamard product
quasigroup
latin square
latin transversal
isomorphism
computer algebra system
title A computational approach to analyze the Hadamard quasigroup product
title_full A computational approach to analyze the Hadamard quasigroup product
title_fullStr A computational approach to analyze the Hadamard quasigroup product
title_full_unstemmed A computational approach to analyze the Hadamard quasigroup product
title_short A computational approach to analyze the Hadamard quasigroup product
title_sort computational approach to analyze the hadamard quasigroup product
topic hadamard product
quasigroup
latin square
latin transversal
isomorphism
computer algebra system
url https://www.aimspress.com/article/doi/10.3934/era.2023164?viewType=HTML
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