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We construct a new class of symmetric algebras of tame representation type that are also the endomorphism algebras of cluster tilting objects in 2-Calabi-Yau triangulated categories, hence all their non-projective indecomposable modules are…

Representation Theory · Mathematics 2019-03-12 Sefi Ladkani

A general notion of a quasi-finite algebra is introduced as an algebra graded by the set of all integers equipped with topologies on the homogeneous subspaces satisfying certain properties. An analogue of the regular bimodule is introduced…

Quantum Algebra · Mathematics 2007-05-23 Atsushi Matsuo , Kiyokazu Nagatomo , Akihiro Tsuchiya

A finite-dimensional Lie algebra is called an A-algebra if all of its nilpotent subalgebras are abelian. These arise in the study of constant Yang-Mills potentials and have also been particularly important in relation to the problem of…

Rings and Algebras · Mathematics 2019-06-04 David A. Towers

In this article the quantized matrix algebras as in the title have been studied at a root of unity. A full classification of simple modules over such quantized matrix algebras of rank $2$ along with a class of finite dimensional…

Quantum Algebra · Mathematics 2022-06-22 Snehashis Mukherjee , Sanu Bera

In recent years, researchers have discovered various large algebraic structures that have surprising finiteness properties, such as FI-modules and Delta-modules. In this paper, we add another example to the growing list: we show that…

Commutative Algebra · Mathematics 2016-03-24 Rohit Nagpal , Steven V Sam , Andrew Snowden

We introduce "neutrabelian algebras", and prove that finite, hereditarily neutrabelian algebras with a cube term are dualizable.

Rings and Algebras · Mathematics 2020-07-15 Keith A. Kearnes , Connor Meredith , Agnes Szendrei

We introduce the notion of almost finite dimensionality of algebras and study its connection with the classical finiteness conditions.

Rings and Algebras · Mathematics 2007-05-23 Gábor Elek

We consider a class of Nichols algebras $\mathscr{B} (\mathfrak L_q( 1, \mathscr{G}))$ introduced in [3] which are domains and have many favorable properties like AS-regular and strongly noetherian. We classify their finite-dimensional…

Quantum Algebra · Mathematics 2022-10-04 Nicolás Andruskiewitsch , Dirceu Bagio , Saradia Della Flora , Daiana Flores

A self-dual algebras is one isomorphic as a module to the opposite of its dual; a quasi self-dual algebra is one whose cohomology with coefficients in itself is isomorphic to that with coefficients in the opposite of its dual. For these…

K-Theory and Homology · Mathematics 2011-11-03 Murray Gerstenhaber

Leibniz algebras ${\mathcal E}_n$ were introduced as algebraic structure underlying U-duality. Algebras ${\mathcal E}_3$ derived from Bianchi three-dimensional Lie algebras are classified here. Two types of algebras are obtained:…

High Energy Physics - Theory · Physics 2020-07-15 Ladislav Hlavaty

Objects dual to graded algebras are subproduct systems of linear spaces, a purely algebraic counterpart of a notion introduced recently in the context of noncommutative dynamics (Shalit and Solel, Bhat and Mukherjee). A complete…

Rings and Algebras · Mathematics 2009-05-28 Boris Tsirelson

In this paper we study subalgebras of complex finite dimensional evolution algebras. We obtain the classification of nilpotent evolution algebras whose any subalgebra is an evolution subalgebra with a basis which can be extended to a…

Rings and Algebras · Mathematics 2014-12-08 L. M. Camacho , A. Kh. Khudoyberdiyev , B. A. Omirov

The concept of "table algebra" was introduced by Z Arad anf H. Blau in order to study in a uniform way properties of products of conjugacy classes and of irreducible characters of a finite group, Except for certain cases which remain open,…

Group Theory · Mathematics 2008-02-21 Zvi Arad , Guiyun Chen , Arisha Haj Ihia Hussam

Primarily this paper presents an expository report on alternatives to the traditional methods of classifying representations of finite dimensional algebras. Some new results illustrating such alternatives for algebras with only finitely…

Representation Theory · Mathematics 2014-07-10 Birge Huisgen-Zimmermann

Absolute algebras are a new type of algebraic structures, endowed with a meaningful notion of infinite sums of operations without supposing any underlying topology. Opposite to the usual definition of operadic calculus, they are defined as…

Algebraic Topology · Mathematics 2025-05-08 Victor Roca i Lucio

This is an expository book on unitary representations of topological groups, and of several dual spaces, which are spaces of such representations up to some equivalence. The most important notions are defined for topological groups, but a…

Group Theory · Mathematics 2019-12-17 Bachir Bekka , Pierre de la Harpe

The partition algebra is an associative algebra with a basis of set-partition diagrams and multiplication given by diagram concatenation. It contains as subalgebras a large class of diagram algebras including the Brauer, planar partition,…

Representation Theory · Mathematics 2019-06-27 Tom Halverson , Theodore N. Jacobson

We classify the primitive ideals of generalized down-up algebras

Rings and Algebras · Mathematics 2010-03-12 Iwan Praton

We study irreducible representations of two classes of conformal Galilei algebras in 1-spatial dimension. We construct a functor which transforms simple modules with nonzero central charge over the Heisenberg subalgebra into simple modules…

Representation Theory · Mathematics 2017-05-10 Rencai Lu , Volodymyr Mazorchuk , Kaiming Zhao

In Part I of this paper, we introduced a class of certain algebras of finite dimension over a field. All these algebras are split, symmetric and local. Here we continue to investigate their Loewy structure. We show that in many cases their…

Representation Theory · Mathematics 2019-12-09 Thomas Breuer , László Héthelyi , Erzsébet Horváth , Burkhard Külshammer