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Hom-Bol algebras are defined as a twisted generalization of (left) Bol algebras. Hom-Bol algebras generalize multiplicative Hom-Lie triple systems in the same way as Bol algebras generalize Lie triple systems. The notion of an $n$th derived…

Rings and Algebras · Mathematics 2012-11-30 Sylvain Attan , A. Nourou Issa

The Terwilliger algebras of association schemes over an arbitrary field $\mathbb{F}$ were called the Terwilliger $\mathbb{F}$-algebras of association schemes in [8]. In this paper, we study the Terwilliger $\mathbb{F}$-algebras of factorial…

Combinatorics · Mathematics 2024-03-14 Yu Jiang

We introduce a new symmetry class of both boxed plane partitions and lozenge tilings of a hexagon, called the $\mathbf{r}$-block diagonal symmetry class, where $\mathbf{r}$ is an $n$-tuple of non-negative integers. We prove that the tiling…

Combinatorics · Mathematics 2025-03-26 Seok Hyun Byun , Yi-Lin Lee

Symmetric homology is an analog of cyclic homology in which the cyclic groups are replaced by symmetric groups. The foundations for the theory of symmetric homology of algebras are developed in the context of crossed simplicial groups using…

Algebraic Topology · Mathematics 2008-07-29 Shaun Ault

A well studied problem in algebraic complexity theory is the determination of the complexity of problems relying on evaluations of bilinear maps. One measure of the complexity of a bilinear map (or 3-tensor) is the optimal number of…

Information Theory · Computer Science 2021-03-23 Eimear Byrne , Giuseppe Cotardo

We construct a Heisenberg-like algebra for the one dimensional infinite square-well potential in quantum mechanics. The ladder operators are realized in terms of physical operators of the system as in the harmonic oscillator algebra. These…

High Energy Physics - Theory · Physics 2009-10-31 E. M. F. Curado , M. A. Rego-Monteiro , H. N. Nazareno

We develop the noncommutative geometry (bundles, connections etc.) associated to algebras that factorise into two subalgebras. An example is the factorisation of matrices $M_2(\C)=\C\Z_2\cdot\C\Z_2$. We also further extend the coalgebra…

Quantum Algebra · Mathematics 2007-05-23 Tomasz Brzezinski , Shahn Majid

Computational effects are commonly modelled by monads, but often a monad can be presented by an algebraic theory of operations and equations. This talk is about monads and algebraic theories for languages for inference, and their…

Logic in Computer Science · Computer Science 2023-12-29 Cristina Matache , Sean Moss , Sam Staton , Ariadne Si Suo

In this paper we will give a similar factorization as in \cite{4}, \cite{5}, where the autors Svrtan and Meljanac examined certain matrix factorizations on Fock-like representation of a multiparametric quon algebra on the free associative…

Rings and Algebras · Mathematics 2015-04-13 Milena Sosic

Associative division algebras are a rich source of fully diverse space-time block codes (STBCs). In this paper the systematic construction of fully diverse STBCs from nonassociative algebras is discussed. As examples, families of fully…

Information Theory · Computer Science 2012-02-07 Susanne Pumpluen , Thomas Unger

Lichnerowicz's algebra of differential geometric operators acting on symmetric tensors can be obtained from generalized geodesic motion of an observer carrying a complex tangent vector. This relation is based upon quantizing the classical…

Differential Geometry · Mathematics 2008-04-24 Karl Hallowell , Andrew Waldron

Recently Terwilliger and the present author found a presentation for the three-point $\mathfrak{sl}_2$ loop algebra via generators and relations. To obtain this presentation we defined a Lie algebra $\boxtimes$ by generators and relations…

Representation Theory · Mathematics 2007-05-23 Brian Hartwig

We give an elementary proof of isomorphism of the blob (diagram) algebra and the corresponding extended Temperley-Lieb algebra (defined by presentation).

Representation Theory · Mathematics 2007-06-13 P P Martin

Let $G=SL(2,5)$ be the special linear group of $2 \times 2$-matrices with coefficients in the field with $5$ elements. We show that the principal block over a splitting field $K$ of characteristic two of the group algebra $KG$ has a…

Representation Theory · Mathematics 2021-01-26 Bernhard Böhmler , Rene Marczinzik

If A is a cocommutative algebra with coproduct, then so is the smash product algebra of a symmetric algebra Sym(V) with A, where V is an A-module. Such smash product algebras, with A a group ring or a Lie algebra, have families of…

Rings and Algebras · Mathematics 2016-01-21 Apoorva Khare

We define several versions of the cohomology ring of an associative algebra. These ring structures unify some well known operations from homological algebra and differential geometry. They have some formal resemblance with the quantum…

Quantum Algebra · Mathematics 2007-05-23 Pyszard Nest , Boris Tsygan

In this paper we introduce a generalization of a Brauer graph algebra which we call a Brauer configuration algebra. As with Brauer graphs and Brauer graph algebras, to each Brauer configuration, there is an associated Brauer configuration…

Representation Theory · Mathematics 2017-05-19 Edward L. Green , Sibylle Schroll

Quantum symmetric algebras (or noncommutative polynomial rings) arise in many places in mathematics. In this article we find the multiplicative structure of their Hochschild cohomology when the coefficients are in an arbitrary bimodule…

Rings and Algebras · Mathematics 2011-05-05 Deepak Naidu , Piyush Shroff , Sarah Witherspoon

For any graded bialgebras $A$ and $B$, we define a commutative graded algebra $A_B$ representing the functor of $B$-representations of $A$. When $A$ is a cocommutative graded Hopf algebra and $B$ is a commutative ungraded Hopf algebra, we…

Quantum Algebra · Mathematics 2018-07-16 Gwenael Massuyeau , Vladimir Turaev

The Grothendieck groups of the categories of finitely generated modules and finitely generated projective modules over a tower of algebras can be endowed with (co)algebra structures that, in many cases of interest, give rise to a dual pair…

Representation Theory · Mathematics 2014-10-24 Alistair Savage , Oded Yacobi