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We introduce the notion of the Frobenius-Perron dimension of an integral $\Bbb Z_+$-ring and give some applications of this notion to classification of finite dimensional quasi-Hopf algebras with a unique nontrivial simple module, and of…

Rings and Algebras · Mathematics 2018-12-18 Pavel Etingof

In this paper, we compute the Frobenius dimension of any cluster tilted algebra of finite type. Moreover, we give conditions on the bounded quiver of a cluster tilted algebra $\Lambda$ such that $\Lambda$ has non-trivial open Frobenius…

Representation Theory · Mathematics 2022-06-06 Viviana Gubitosi

We determine the structure of the partition algebra $P_n(Q)$ (a generalized Temperley-Lieb algebra) for specific values of $Q \in \C$, focusing on the quotient which gives rise to the partition function of $n$ site $Q$-state Potts models…

High Energy Physics - Theory · Physics 2009-10-22 Paul Martin , Hubert Saleur

We examine situations, where representations of a finite-dimensional $F$-algebra $A$ defined over a separable extension field $K/F$, have a unique minimal field of definition. Here the base field $F$ is assumed to be a $C_1$-field. In…

Representation Theory · Mathematics 2019-02-20 Dave Benson , Zinovy Reichstein

We establish relations between Frobenius parts and between flat-dominant dimensions of algebras linked by Frobenius bimodules. This is motivated by the Nakayama conjecture and an approach of Martinez-Villa to the Auslander-Reiten conjecture…

Representation Theory · Mathematics 2019-03-20 Changchang Xi

A brief proof of Lie's classification of finite dimensional subalgebras of vector fields on the complex plane that have a proper Levi decomposition is given. The proof uses basic representation theory of sl(2, C). This, combined with…

Representation Theory · Mathematics 2025-07-31 Hassan Azad , Indranil Biswas , Ahsan Fazil , Fazal M. Mahomed

A classical result in quantum topology is that oriented 2-dimensional topological quantum field theories (2-TQFTs) are fully classified by commutative Frobenius algebras. In 2006, Turaev and Turner introduced additional structure on…

Quantum Algebra · Mathematics 2025-11-04 Agustina Czenky , Jacob Kesten , Abiel Quinonez , Chelsea Walton

We prove that a finite dimensional algebra is $\tau$-tilting finite if and only if it does not admit large silting modules. Moreover, we show that for a $\tau$-tilting finite algebra $A$ there is a bijection between isomorphism classes of…

Representation Theory · Mathematics 2018-01-16 Lidia Angeleri Hügel , Frederik Marks , Jorge Vitória

We analyze the algebraic structures of G--Frobenius algebras which are the algebras associated to global group quotient objects. Here G is any finite group. These algebras turn out to be modules over the Drinfeld double of the group ring…

Algebraic Geometry · Mathematics 2007-05-23 Ralph M. Kaufmann

For a finite set of homogeneous locally nilpotent derivations of the algebra of polynomials in several variables, a finite dimensionality criterion for the Lie algebra generated by these derivations is known. Also the structure of the…

Rings and Algebras · Mathematics 2025-06-13 Ivan Arzhantsev , Sergey Gaifullin , Viktor Lopatkin

An elementary proof is given for the existence of infinite dimensional abelian subalgebras in quantum W-algebras. In suitable realizations these subalgebras define the conserved charges of various quantum integrable systems. We consider all…

High Energy Physics - Theory · Physics 2008-02-03 M. R. Niedermaier

The aim of this paper is mainly to build a new representation-theoretic realization of finite root systems through the so-called Frobenius-type triangular matrix algebras by the method of reflection functors over any field. Finally, we give…

Rings and Algebras · Mathematics 2016-03-06 Fang Li , Chang Ye

For a finite dimensional algebra $R$, we give an explicit description of quivers with relations of block extension of $R$. As an application, we describe quivers with relations of Harada algebras by using those of the corresponding…

Representation Theory · Mathematics 2009-06-18 Kota Yamaura

Some equivalence classes in symmetric group lead to an interesting class of noncommutive and associative algebras. From these algebras we construct noncommutative Frobenius algebras. Based on the correspondence between Frobenius algebras…

High Energy Physics - Theory · Physics 2017-01-31 Yusuke Kimura

In the first part of this article we prove that one of the conditions required in the original definition of nearly Frobenius algebra, the coassociativity, is redundant. Also, we determine the Frobenius dimension of the product and tensor…

Rings and Algebras · Mathematics 2019-07-29 Dalia Artenstein , Ana González , Gustavo Mata

We classify simple representations of Khovanov-Lauda-Rouquier algebras in finite type. The classification is in terms of a standard family of representations that is shown to yield the dual PBW basis in the Grothendieck group. Finally, we…

Representation Theory · Mathematics 2013-07-19 Peter J. McNamara

The purpose of this paper is a partial progress towards classification of simple infinite dimensional Jordan superalgebras. First, we prove that the only simple infinite dimensional Jordan superalgebras with finite dimensional even parts…

Rings and Algebras · Mathematics 2025-03-12 Ivan Shestakov , Efim Zelmanov

Our initial aim was to answer the question: does the Frobenius (symmetric) property transfers from a strongly graded algebra to its homogeneous component of trivial degree? Related to it, we investigate invertible bimodules and the Picard…

Rings and Algebras · Mathematics 2024-07-17 Sorin Dascalescu , Constantin Nastasescu , Laura Nastasescu

We discuss the classification of 2-solvable Frobenius Lie algebras. We prove that every 2-solvable Frobenius Lie algebra splits as a semidirect sum of an n-dimensional vector space V and an n-dimensional maximal Abelian subalgebra (MASA) of…

Differential Geometry · Mathematics 2023-08-14 Andre Diatta , Bakary Manga , Ameth Mbaye

We study central simple algebras with involution of the first kind that become hyperbolic over the function field of the conic associated to a given quaternion algebra $Q$. We classify these algebras in degree~4 and give an example of such…

Rings and Algebras · Mathematics 2008-12-18 Anne Quéguiner-Mathieu , Jean-Pierre Tignol