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In this paper we investigate a family of algebras endowed with a suitable non-degenerate bilinear form that can be used to define two different notions of dual for a given right ideal. We apply our results to the classification of the right…

Rings and Algebras · Mathematics 2018-09-10 Alessandro Ardizzoni , Fabio Stumbo

In this short note, we give a new sufficient condition for a linear map from a product of copies of a field to endomorphisms of a finite dimensional vector space over the same field to be an algebra homomorphism. We expect that this result…

Rings and Algebras · Mathematics 2015-07-31 Rajesh S. Kulkarni , Yusuf Mustopa , Ian Shipman

We introduce a dynamical evolution operator for dealing with unstable physical process, such as scattering resonances, photon emission, decoherence and particle decay. With that aim, we use the formalism of rigged Hilbert space and…

Quantum Physics · Physics 2018-07-16 Marcelo Losada , Sebastian Fortin , Manuel Gadella , Federico Holik

We study the behaviors of cohomological Hall algebras and relevant subjects under an edge contraction. Given a quiver with potential and fix an arrow, the edge contraction is a way to construct a new quiver with potential. We show that…

Algebraic Geometry · Mathematics 2024-01-30 Yiqiang Li , Jie Ren

We consider the Hopf algebra of B-diagrams as an algebra projecting onto the Heisenberg algebra and designed to encode the combinatorics of the bosonic normal-ordering problem. In order to understand and generalize the properties of the…

Combinatorics · Mathematics 2026-01-15 Ali Chouria , Jean-Gabriel Luque

The problem is the classification of the ideals of ``free differential algebras", or the associated quotient algebras, the q-algebras; being finitely generated, unital C-algebras with homogeneous relations and a q-differential structure.…

Quantum Algebra · Mathematics 2007-05-23 Christian Fronsdal

In this paper, we introduce a novel generalization of the classical property of algebras known as "being alternative," which we term "partially alternative." This new concept broadens the scope of alternative algebras, offering a fresh…

Rings and Algebras · Mathematics 2025-05-14 Tianran Hua , Ekaterina Napedenina , Marina Tvalavadze

We say that there is a representation of the universal algebra B in the universal algebra A if the set of endomorphisms of the universal algebra A has the structure of universal algebra B. Therefore, the role of representation of the…

Rings and Algebras · Mathematics 2011-11-28 Aleks Kleyn

In this paper, we introduce the notion of bigraft algebra, generalizing the notions of left and right graft algebras. We give a combinatorial description of the free bigraft algebra generated by one generator and we endow this algebra with…

Rings and Algebras · Mathematics 2012-06-26 Anthony Mansuy

Our objective is to extend the standard results of preservation and reflection of properties by bisimulations to the coalgebraic setting, as well as to study under what conditions these results hold for simulations. The notion of…

Logic in Computer Science · Computer Science 2024-02-05 Ignacio Fábregas , Miguel Palomino , David de Frutos-Escrig

We exhibit an adjunction between a category of abstract algebras of partial functions and a category of set quotients. The algebras are those atomic algebras representable as a collection of partial functions closed under relative…

Logic · Mathematics 2022-06-15 Célia Borlido , Brett McLean

Given a real number $q$ such that $0<q<1$, the natural setting for the mathematics of a $q$-oscillator is an infinite-dimensional, separable Hilbert space that is said to provide an interpolation between the Bargmann-Segal space of…

Operator Algebras · Mathematics 2023-02-15 Rafael Reno S. Cantuba

Language theory, symbolic dynamics, modelisation of viral insertion into the genetic code of a host cell motivate the introduction of new types of bialgebras whose coalgebra parts are not necessarily coassociative. One of the aim of this…

Quantum Algebra · Mathematics 2007-05-23 Leroux Philippe

Let $k$ be a complete non-archimedean non-trivial valued field. In this paper, we investigate whether every $k$-algebra homomorphism between $k$-affinoid algebras is automatically bounded. We show that this property holds if and only if…

Algebraic Geometry · Mathematics 2025-05-27 Shou Yoshikawa

The first aim of this paper is to introduce and study symmetric (Bi)Hom-Leibniz algebras, which are left and right Leibniz algebras. We discuss $\alpha^k\beta^l$-generalized derivations, $\alpha^k\beta^l$ -quasi-derivations and…

Rings and Algebras · Mathematics 2019-08-23 Saadaoui Nejib

We show that a class of algebras is closed under the taking of homomorphic images and direct products if and only if the class consists of all algebras that satisfy a set of (generally simultaneous) equations. For classes of regular…

Group Theory · Mathematics 2022-06-23 Peter M Higgins , Marcel Jackson

For given Boolean algebras $\mathbb{A}$ and $\mathbb{B}$ we endow the space $\mathcal{H}(\mathbb{A},\mathbb{B})$ of all Boolean homomorphisms from $\mathbb{A}$ to $\mathbb{B}$ with various topologies and study convergence properties of…

Logic · Mathematics 2021-01-05 Piotr Borodulin-Nadzieja , Damian Sobota

We consider algebras of $m\times m\times m$-cubic matrices (with $m=1,2,\dots$). Since there are several kinds of multiplications of cubic matrices, one has to specify a multiplication first and then define an algebra of cubic matrices…

Rings and Algebras · Mathematics 2016-09-13 M. Ladra , U. A. Rozikov

Let $k$ be a field containing an algebraically closed field of characteristic zero. If $G$ is a finite group and $D$ is a division algebra over $k$, finite dimensional over its center, we can associate to a faithful $G$-grading on $D$ a…

Rings and Algebras · Mathematics 2020-09-08 Eli Aljadeff , Darrell Haile , Yakov Karasik

We use homotopy theory to define certain rational coefficients characteristic numbers with integral values, depending on a given prime number q and positive integer t. We prove the first nontrivial degree formula and use it to show that…

Algebraic Topology · Mathematics 2009-03-26 Simone Borghesi