English
Related papers

Related papers: A note on 2-generated symmetric axial algebras of …

200 papers

Axial algebras of Monster type are a class of commutative algebras generated by special idempotents called axes. Some motivating examples of these algebras are the Griess algebra and the Norton-Sakuma algebras, relating to the Monster…

Rings and Algebras · Mathematics 2026-05-19 Clara Franchi , Mario Mainardis , Justin McInroy , Michael Turner

In this paper we prove that $2$-generated primitive axial algebras of Monster type $(2\beta, \beta)$ over a ring $R$ in which $2$ and $\beta$ are invertible can be generated as $R$-module by $8$ vectors. We then completely classify…

Rings and Algebras · Mathematics 2022-11-21 Clara Franchi , Mario Mainardis , Sergey Shpectorov

Rehren proved that a primitive 2-generated axial algebra of Monster type $(\alpha,\beta)$ has dimension at most eight if $\alpha\notin\{2\beta,4\beta\}$. In this note we construct an infinite-dimensional 2-generated primitive axial algebra…

Rings and Algebras · Mathematics 2020-07-14 Clara Franchi , Mario Mainardis , Sergey Shpectorov

In our first paper, we looked at $2$-generated primitive axial algebras of Monster type with skew axet $X'(1+2)$. We continue our work by focusing on larger skew axets and classifying all such algebras with skew axets. This brings us one…

Rings and Algebras · Mathematics 2024-08-19 Michael Turner

Axial algebras of Monster type are a class of non-associative algebras which generalise the Griess algebra, whose automorphism group is the largest sporadic simple group, the Monster. The $2$-generated algebras, which are the building…

Rings and Algebras · Mathematics 2026-01-01 Justin McInroy , Abdul Wajid Mir

We provide the basic setup for the project, initiated by Felix Rehren, aiming at classifying all 2-generated axial algebras of Monster type $(\alpha,\beta)$ over a field $\mathbb F$. Using this, we first show that every such algebra has…

Rings and Algebras · Mathematics 2024-10-14 Clara Franchi , Mario Mainardis , Sergey Shpectorov

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…

Rings and Algebras · Mathematics 2020-09-25 Sanhan Khasraw , Justin McInroy , Sergey Shpectorov

Motivated by Yabe's classification of symmetric $2$-generated axial algebras of Monster type, we introduce a large class of algebras of Monster type $(\alpha, \frac{1}{2})$, generalising Yabe's $\mathrm{III}(\alpha,\frac{1}{2}, \delta)$…

Rings and Algebras · Mathematics 2021-07-19 J. McInroy , S. Shpectorov

Axial algebras are a class of commutative non-associative algebras generated by idempotents, called axes, with adjoint action semi-simple and satisfying a prescribed fusion law. Axial algebras were introduced by Hall, Rehren and Shpectorov…

Rings and Algebras · Mathematics 2021-04-09 Alexey Galt , Vijay Joshi , Andrey Mamontov , Sergey Shpectorov , Alexey Staroletov

Axial algebras are non-associative algebras generated by semisimple idempotents, known as axes, that all obey a fusion rule. Axial algebras were introduced by Hall, Rehren and Shpectorov as a generalisation of the axioms of Majorana theory,…

Rings and Algebras · Mathematics 2018-10-02 Madeleine Whybrow

Skew axets were first defined by McInroy and Shpectorov where they used the term of axets to classify shapes of an algebra. When they first submitted their paper, it was not known if skew axial algebras exist and now we will present such…

Rings and Algebras · Mathematics 2024-02-29 Michael Turner

Axial algebras are a class of commutative algebras generated by idempotents, with adjoint action semisimple and satisfying a prescribed fusion law. Axial algebras were introduced by Hall, Rehren, and Shpectorov in 2015 as a broad…

Rings and Algebras · Mathematics 2023-01-02 Andrey Mamontov , Alexey Staroletov

A class of axial algebras generated by two axes with eigenvalues 0, 1, $\eta$ and $\xi$ called axial algebras of Majorana type is introduced and classified when they are 2-generated, over fields of characteristics neither 2 nor 5 and there…

Rings and Algebras · Mathematics 2021-04-16 Takahiro Yabe

The notion of axial algebra is closely related to $3$-transposition groups, the Monster group and vertex operator algebras. In this work we continue our previous works and compete the proof that all algebras generated by a set of primitive…

Rings and Algebras · Mathematics 2021-12-02 Louis Rowen , Yoav Segev

Axial algebras are a recently introduced class of non-associative algebra, with a naturally associated group, which generalise the Griess algebra and some key features of the moonshine VOA. Sakuma's Theorem classifies the eight…

Rings and Algebras · Mathematics 2020-12-01 Justin McInroy

Axial algebras are a class of commutative non-associative algebras which have a natural group of automorphisms, called the Miyamoto group. The motivating example is the Griess algebra which has the Monster sporadic simple group as its…

Rings and Algebras · Mathematics 2023-12-01 Ilya Gorshkov , Justin McInroy , Tendai Mudziiri Shumba , Sergey Shpectorov

An axial algebra $A$ is a commutative non-associative algebra generated by primitive idempotents, called axes, whose adjoint action on $A$ is semisimple and multiplication of eigenvectors is controlled by a certain fusion law. Different…

Rings and Algebras · Mathematics 2020-04-27 Justin McInroy , Sergey Shpectorov

Axial algebras are a class of non-associative algebra with a strong link to finite (especially simple) groups which have recently received much attention. Of primary interest are the axial algebras of Monster type $(\alpha, \beta)$, of…

Rings and Algebras · Mathematics 2022-05-05 Clara Franchi , Mario Mainardis , Justin McInroy

Axial algebras are a class of non-associative commutative algebras whose properties are defined in terms of a fusion law. When this fusion law is graded, the algebra has a naturally associated group of automorphisms and thus axial algebras…

Rings and Algebras · Mathematics 2022-09-19 Justin McInroy , Sergey Shpectorov

We consider Majorana algebras generated by three Majorana axes $a_0$, $a_1$ and $a_2$ such that $a_0$ and $a_1$ generate a dihedral algebra of type 2A. We show that such an algebra must occur as a Majorana representation of one of 27…

Group Theory · Mathematics 2018-01-17 Madeleine L. Whybrow
‹ Prev 1 2 3 10 Next ›