Associative ternary algebras and ternary Lie algebras at cube roots of unity

Fuente: arXiv
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Main Authors: Aader, Anti Maria, Abramov, Viktor, Liivapuu, Olga
Format: Preprint
Published: 2025
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author Aader, Anti Maria
Abramov, Viktor
Liivapuu, Olga
author_facet Aader, Anti Maria
Abramov, Viktor
Liivapuu, Olga
contents We propose an approach to extending the concept of a Lie algebra to ternary structures based on $ω$-symmetry, where $ω$ is a primitive cube root of unity. We give a definition of a corresponding structure, called a ternary Lie algebra at cube roots of unity, or a ternary $ω$-Lie algebra. A method for constructing ternary associative algebras has been developed. For ternary algebras, the notions of the ternary $ω$-associator and the ternary $ω$-commutator are introduced. It is shown that if a ternary algebra possesses the property of associativity of the first or second kind, then the ternary $ω$-commutator on this algebra determines the structure of a ternary $ω$-Lie algebra. Ternary algebras of cubic matrices with associative ternary multiplication of the second kind are considered. The structure of the 8-dimensional ternary $ω$-Lie algebra of cubic matrices of the second order is studied, and all its subalgebras of dimensions 2 and 3 are determined.
format Preprint
id arxiv_https___arxiv_org_abs_2510_23433
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Associative ternary algebras and ternary Lie algebras at cube roots of unity
Aader, Anti Maria
Abramov, Viktor
Liivapuu, Olga
Rings and Algebras
We propose an approach to extending the concept of a Lie algebra to ternary structures based on $ω$-symmetry, where $ω$ is a primitive cube root of unity. We give a definition of a corresponding structure, called a ternary Lie algebra at cube roots of unity, or a ternary $ω$-Lie algebra. A method for constructing ternary associative algebras has been developed. For ternary algebras, the notions of the ternary $ω$-associator and the ternary $ω$-commutator are introduced. It is shown that if a ternary algebra possesses the property of associativity of the first or second kind, then the ternary $ω$-commutator on this algebra determines the structure of a ternary $ω$-Lie algebra. Ternary algebras of cubic matrices with associative ternary multiplication of the second kind are considered. The structure of the 8-dimensional ternary $ω$-Lie algebra of cubic matrices of the second order is studied, and all its subalgebras of dimensions 2 and 3 are determined.
title Associative ternary algebras and ternary Lie algebras at cube roots of unity
topic Rings and Algebras
url https://arxiv.org/abs/2510.23433