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Hom-unitality and hom-associative structures
Mälardalen University, School of Education, Culture and Communication, Educational Sciences and Mathematics.ORCID iD: 0000-0002-2652-0317
Mälardalen University, School of Education, Culture and Communication, Educational Sciences and Mathematics.
(English)Manuscript (preprint) (Other academic)
Abstract [en]

This paper studies the problem of hom-associative structures, twisting maps which make the product of a given algebra product hom-associative. The twisting map of a one-sided unital hom-associative algebra is a multiplication operator - we describe a subspace and a subalgebra of hom-unities, algebra elements which induce hom-associativity by multiplication. Non-unital hom-associative algebras need not be twisted by a multiplication operator. We use a unitalization process to describe a subalgebra of two-sided hom-unities which induce hom-associative structures on such algebras in terms of eigenspaces of multiplication operators within the algebra.

Keywords [en]
hom-algebra, unital, hom-associative
National Category
Algebra and Logic
Identifiers
URN: urn:nbn:se:mdh:diva-73234OAI: oai:DiVA.org:mdh-73234DiVA, id: diva2:1996671
Available from: 2025-09-10 Created: 2025-09-10 Last updated: 2025-10-10Bibliographically approved
In thesis
1. Hom-associative structures, n-hom-Lie algebras, twisted derivations and beyond
Open this publication in new window or tab >>Hom-associative structures, n-hom-Lie algebras, twisted derivations and beyond
2025 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis explores hom-algebra structures and twisted derivation operators. The discretization of derivations and algebras plays a significant role in mathematical physics. We examine the hom-algebraic structure of mutation algebras, defined via generalized commutators, and study the interactions among twisted derivations by embedding them into a hom-algebra structure that modifies the Lie algebra of ordinary derivations. We investigate zero-divisor relations between elements of hom-associative algebras and prove that one-sided unital algebras contain a subalgebra whose elements encode all twisting maps that render the product hom-associative. Furthermore, we construct a hom-algebra structure based on the Jacobian determinant of partial derivatives. Finally, we introduce a new algebraic structure that arises naturally in the Jacobian construction and explore its fundamental properties, derivations, and potential extensions.

Place, publisher, year, edition, pages
Mälardalens universitet, 2025
Series
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 444
Keywords
hom-algebra, mutation algebra, hom-associative, hom-flexible, 3-hom-power associative, hom-Lie algebra, Jacobian determinant, trace operator, generalized derivation, n-hom-Lie algebra, unital algebra, gcd domain, twisted derivation, graded Lie algebra, zero division, hom-associative algebra
National Category
Algebra and Logic
Research subject
Mathematics/Applied Mathematics
Identifiers
urn:nbn:se:mdh:diva-73195 (URN)978-91-7485-722-1 (ISBN)
Public defence
2025-10-24, Pi, Mälardalens universitet, Västeras, 13:15 (English)
Opponent
Supervisors
Available from: 2025-09-10 Created: 2025-09-10 Last updated: 2025-10-10Bibliographically approved

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