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A chain of evolution algebras (CEA) is an uncountable family (depending on time) of evolution algebras on the field of real numbers. The matrix of structural constants of a CEA satisfies Kolmogorov-Chapman equation. In this paper, we…

Rings and Algebras · Mathematics 2021-07-07 Bobomurad Narkuziyev , Utkir Rozikov

In this work we study the space of derivations of non-degenerate evolution algebras. We improve some results obtained recently in the literature and, as a consequence, we advance in the description of the derivations for $n$-dimensional…

Rings and Algebras · Mathematics 2022-04-01 Yolanda Cabrera Casado , Paula Cadavid , Tiago Reis

An endo-commutative algebra is a nonassociative algebra in which the square mapping preserves multiplication. In this paper, we give a complete classification of 2-dimensional endo-commutative straight algebras of rank one over an arbitrary…

Rings and Algebras · Mathematics 2023-05-30 Sin-Ei Takahasi , Kiyoshi Shirayanagi , Makoto Tsukada

In the present paper we obtain the list of algebras, up to isomorphism, such that closure of any complex finite-dimensional algebra contains one of the algebra of the given list.

Rings and Algebras · Mathematics 2013-01-25 A. Kh. Khudoyberdiyev , B. A. Omirov

Recently, by A. Elduque and A. Labra a new technique and a type of an evolution algebra are introduced. Several nilpotent evolution algebras defined in terms of bilinear forms and symmetric endomorphisms are constructed. The technique then…

Rings and Algebras · Mathematics 2017-11-15 B. A. Omirov , U. A. Rozikov , M. V. Velasco

We introduce a new class of algebras called endo-commutative algebras in which the square mapping preserves multiplication, and provide a complete classification of endo-commutative algebras of dimension 2 over the field F_2 of two…

Rings and Algebras · Mathematics 2022-11-09 Sin-Ei Takahasi , Kiyoshi Shirayanagi , Makoto Tsukada

In this article we study the endomorphism algebras of abelian varieties $A$ defined over a given number field $K$ with large cyclic 2-torsion fields. A key step in doing so is to provide criteria for all the endomorphisms of $A$ to be…

Number Theory · Mathematics 2026-03-24 Pip Goodman

In this paper, we provide a complete classification of 2-dimensional endo-commutative straight algebras of type I over any field. An endo-commutative algebra is a non-associative algebra in which the square mapping preserves multiplication.…

Rings and Algebras · Mathematics 2023-07-06 Sin-Ei Takahasi , Kiyoshi Shirayanagi , Makoto Tsukada

The type and several invariant subspaces related to the upper annihilating series of finite-dimensional nilpotent evolution algebras are introduced. These invariants can be easily computed from any natural basis. Some families of nilpotent…

Rings and Algebras · Mathematics 2017-11-27 Alberto Elduque , Alicia Labra

We classify all division algebras that are principal Albert isotopes of a cyclic Galois field extension of degree $n>2$ up to isomorphisms. We achieve a ``tight'' classification when the cyclic Galois field extension is cubic. The…

Rings and Algebras · Mathematics 2025-02-28 Susanne Pumpluen

We introduce an (evolution) algebra identifying the coefficients of inheritance of a bisexual population as the structure constants of the algebra. The basic properties of the algebra are studied. We prove that this algebra is commutative…

Dynamical Systems · Mathematics 2010-03-15 M. Ladra , U. A. Rozikov

We introduce a concept of an embedding of a quadratic space in an associative algebra. The general properties of such embeddings are analyzed by linking it to the Clifford algebra. Conversely, there isa simple description of the standard…

Rings and Algebras · Mathematics 2018-11-22 Vineeth Chintala

We give a classification of all third-order nonlinear evolution equations which admit solvable Lie symmetry algebras $\mathsf{A}$ and which are not linearized. We have found that there are 48 types of equations for $\dim\mathsf{A}=3$, 88…

Representation Theory · Mathematics 2021-07-15 P. Basarab-Horwath , F. Güngör

A twist property is developed which imparts certain properties on the twisted group algebra. These include an involution * satisfying (xy)*=y*x* and an inner product satisfying <xy,z> = <x,zy*> and <xy,z>=<y,x*z>. Examples of twisted group…

Rings and Algebras · Mathematics 2011-07-08 John W. Bales

In this paper, we introduce Volterra evolution algebras which are evolution algebras whose structural matrices are described by skew symmetric matrices. A main result of the present paper gives a connection between such kind of algebras…

Rings and Algebras · Mathematics 2019-04-24 Izzat Qaralleh , Farrukh Mukhamedov

Vector products can be defined on spaces of dimensions 0, 1, 3 and 7 only, and their isomorphism types are determined entirely by their adherent symmetric bilinear forms. We present a short and elementary proof for this classical result.

Rings and Algebras · Mathematics 2009-11-24 Erik Darpö

An endo-commutative algebra is a nonassociative algebra in which the square mapping preserves multiplication. In this paper, we give a complete classification of endo-commutative curled algebras of dimension 2 over an arbitrary non-trivial…

Rings and Algebras · Mathematics 2023-04-26 Sin-Ei Takahasi , Kiyoshi Shirayanagi , Makoto Tsukada

Let $A$ be a finite dimensional algebra over an algebraically closed field $k$, $\mathcal {D}^b(A)$ be the bounded derived category of $A$-mod and $A^{(m)}$ be the $m$-replicated algebra of $A$. In this paper, we investigate the structure…

Representation Theory · Mathematics 2012-12-18 Genhua Pei , Hongbo Yin , Shunhua Zhang

In this paper we present a method for finding the absorbing radical of a finite-dimensional evolution algebra. Such a method consists of finding the acyclic vertices of an oriented graph associated with the algebra. The set of generators…

Rings and Algebras · Mathematics 2023-06-28 Paula Cadavid , Tiago Reis , Mary Luz Rodiño

This short note provides positive answers to two conjectures of Camacho, Khudoyberdiyev, and Omirov on the classification of complete evolution algebras. Our approach is based on analysing the solution set of a generic non-linear polynomial…

Rings and Algebras · Mathematics 2025-12-16 Xabier García-Martínez , Andrés Pérez-Rodríguez