Enumerating 3-generated axial algebras of Monster type

Justin McInroy; Sergey Shpectorov; Sanhan Khasraw

doi:10.1016/j.jpaa.2021.106816

Enumerating 3-generated axial algebras of Monster type

Justin McInroy^*, Sergey Shpectorov^*, Sanhan Khasraw^*

^*Corresponding author for this work

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Abstract

An axial algebra is a commutative non-associative algebra generated by axes, that is, primitive, semisimple idempotents whose eigenvectors multiply according to a certain fusion law. The Griess algebra, whose automorphism group is the Monster, is an example of an axial algebra. We say an axial algebra is of Monster type if it has the same fusion law as the Griess algebra.

The 2-generated axial algebras of Monster type, called Norton-Sakuma algebras, have been fully classified and are one of nine isomorphism types. In this paper, we enumerate and construct the 3-generated axial algebras of Monster type which do not contain a 5A, or 6A subalgebra.

Original language	English
Article number	106816
Journal	Journal of Pure and Applied Algebra
Volume	226
Issue number	2
Early online date	17 Jun 2021
DOIs	https://doi.org/10.1016/j.jpaa.2021.106816
Publication status	Published - 1 Feb 2022

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© 2021 Elsevier B.V.

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abstract = "An axial algebra is a commutative non-associative algebra generated by axes, that is, primitive, semisimple idempotents whose eigenvectors multiply according to a certain fusion law. The Griess algebra, whose automorphism group is the Monster, is an example of an axial algebra. We say an axial algebra is of Monster type if it has the same fusion law as the Griess algebra. The 2-generated axial algebras of Monster type, called Norton-Sakuma algebras, have been fully classified and are one of nine isomorphism types. In this paper, we enumerate and construct the 3-generated axial algebras of Monster type which do not contain a 5A, or 6A subalgebra.",

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N2 - An axial algebra is a commutative non-associative algebra generated by axes, that is, primitive, semisimple idempotents whose eigenvectors multiply according to a certain fusion law. The Griess algebra, whose automorphism group is the Monster, is an example of an axial algebra. We say an axial algebra is of Monster type if it has the same fusion law as the Griess algebra. The 2-generated axial algebras of Monster type, called Norton-Sakuma algebras, have been fully classified and are one of nine isomorphism types. In this paper, we enumerate and construct the 3-generated axial algebras of Monster type which do not contain a 5A, or 6A subalgebra.

AB - An axial algebra is a commutative non-associative algebra generated by axes, that is, primitive, semisimple idempotents whose eigenvectors multiply according to a certain fusion law. The Griess algebra, whose automorphism group is the Monster, is an example of an axial algebra. We say an axial algebra is of Monster type if it has the same fusion law as the Griess algebra. The 2-generated axial algebras of Monster type, called Norton-Sakuma algebras, have been fully classified and are one of nine isomorphism types. In this paper, we enumerate and construct the 3-generated axial algebras of Monster type which do not contain a 5A, or 6A subalgebra.

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ER -

Enumerating 3-generated axial algebras of Monster type

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