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In this paper, we study modularity in the context of evolution algebras. Although this property has been previously considered, a complete description is still missing in several natural settings. In particular, we obtain a full…

Rings and Algebras · Mathematics 2026-04-02 Manuel Ladra , Andrés Pérez-Rodríguez

In this paper we completely characterize the graphs which have an edge weighted adjacency matrix belonging to the class of $n \times n$ involutions with spectrum equal to $\{ \lambda_1^{n-2}, \lambda_2^{2} \}$ for some $\lambda_1$ and some…

Combinatorics · Mathematics 2015-04-17 Karen Meagher , Irene Sciriha

To use evolution algebras to model population dynamics that both allow extinction and introduction of certain gametes in finite generations, nilpotency must be built into the algebraic structures of these algebras with the entire algebras…

Rings and Algebras · Mathematics 2014-04-23 Jianjun Paul Tian , Yi Ming Zou

We consider algebras over a field K defined by a presentation K <x_1,..., x_n : R >, where $R$ consists of n choose 2 square-free relations of the form x_i x_j = x_k x_l with every monomial x_i x_j, i different from j, appearing in one of…

Rings and Algebras · Mathematics 2007-05-23 T. Gateva-Ivanova , Eric Jespers , Jan Okninski

Involutions of the Clifford algebra of a quadratic space induced by orthogonal symmetries are investigated.

Rings and Algebras · Mathematics 2010-06-08 M. G. Mahmoudi

The algebraic study of special integral operators led to the notions of Rota-Baxter operators and shuffle products which have found broad applications. This paper carries out an algebraic study of general integral operators and equations,…

Rings and Algebras · Mathematics 2023-12-12 Li Guo , Richard Gustavson , Yunnan Li

We introduce the notion of vertex coalgebra, a generalization of vertex operator coalgebras. Next we investigate forms of cocommutativity, coassociativity, skew-symmetry, and an endomorphism, $D^*$, which hold on vertex coalgebras. The…

Quantum Algebra · Mathematics 2008-01-22 Keith Hubbard

Leibniz algebras are non-skewsymmetric analogue of Lie algebras. In this paper, we consider weighted relative Rota-Baxter operators on Leibniz algebras. We define cohomology of such operators and as an application, we study their…

Representation Theory · Mathematics 2022-02-08 Apurba Das

A quadratic stochastic operator (in short QSO) is usually used to present the time evolution of differing species in biology. Some quadratic stochastic operators have been studied by Lotka and Volterra. In the present paper, we first give a…

Dynamical Systems · Mathematics 2017-08-15 Farrukh Mukhamedov , Muhammad Hafizuddin Bin Mohd Taha

We characterize vertex algebras (in a suitable sense) as algebras over a certain graded co-operad. We also discuss some examples and categorical implications of this characterization.

Rings and Algebras · Mathematics 2010-06-02 Ruthi Hortsch , Igor Kriz , Ales Pultr

In this paper we classify a family of three-dimensional real evolution algebras. We also consider an evolution operator for an evolution algebra and find fixed points of this operator for two and three-dimensional cases. Then we construct…

Rings and Algebras · Mathematics 2019-03-14 Anvar Imomkulov

This work presents a new evolutionary optimization algorithm in theoretical mathematics with important applications in scientific computing. The use of the evolutionary algorithm is justified by the difficulty of the study of the…

Algebraic Geometry · Mathematics 2017-10-31 Ivan Martino , Giuseppe Nicosia

We present groupoid morphisms as an algebraic structure for nonautonomous dynamics, as well as a generalization of group morphisms, which describe classic dynamical systems. We introduce the structure of cotranslations, as a specific kind…

Dynamical Systems · Mathematics 2023-11-14 Néstor Jara

It is well-known that the space of derivations of $n$-dimensional evolution algebras with non-singular matrices is zero. On the other hand, the space of derivations of evolution algebras with matrices of rank $n-1$ has also been completely…

Rings and Algebras · Mathematics 2018-11-06 Paula Cadavid , Mary Luz Rodiño Montoya , Pablo M. Rodriguez

A class of associative (super) algebras is presented, which naturally generalize both the symmetric algebra $Sym(V)$ and the wedge algebra $\wedge (V)$, where $V$ is a vector-space. These algebras are in a bijection with those subsets of…

Combinatorics · Mathematics 2007-05-23 A. Regev

Let $A$ be a finite dimensional algebra over an algebraically closed field $k$. We investigate the structure properties of the endomorphism algebras of semi-tilting $A$-modules, and prove that the endomorphism algebras arising from the…

Representation Theory · Mathematics 2015-03-19 Shunhua Zhang

In this paper, we introduce an algebra structure denoted by InvDer algebra whose which we twist an algebra thanks to an invertible derivation, where its inverse is also a derivation. We define InvDer Lie algebras, InvDer associated…

Rings and Algebras · Mathematics 2023-06-30 Imed Basdouri , Esmael Peyghan , Mohamed Amin Sadraoui

We introduce a notion of $\ell$-Volterra quadratic stochastic operator defined on $(m-1)$-dimensional simplex, where $\ell\in\{0,1,...,m\}$. The $\ell$-Volterra operator is a Volterra operator iff $\ell=m$. We study structure of the set of…

Dynamical Systems · Mathematics 2007-12-27 U. A. Rozikov , A. Zada

In this paper we introduce a new invariant for a non-degenerate evolution algebra, which consists of an ordered sequence of evolution algebras of lower dimension, belonging all of them to a specific family. We use this invariant to propose…

Rings and Algebras · Mathematics 2024-03-29 Antonio Jesús Calderón Martín , Amir Fernández Ouaridi , Ivan Kaygorodov

The algebra of invariants of d-tuples of n x n skew-symmetric matrices under the action of the orthogonal group by simultaneous conjugation is considered over an infinite field of characteristic different from two. For n=3 and d>0 a minimal…

Representation Theory · Mathematics 2012-07-24 A. A. Lopatin