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A Category of Restricted Modules for the Ovisenko-Roger Algebra

期刊: ALGEBRAS AND REPRESENTATION THEORY, ; ()

In this paper, we study a category of restricted modules for the Ovsienko-Roger algebra, which is an extension of the Virasoro algebra of its tensor d......

A Construction of Representations of Loop Group and Affine Lie Algebra of sl(n)

期刊: ALGEBRAS AND REPRESENTATION THEORY, ; ()

We construct a family of representations of a central extension of loop group and affine Lie algebra for sln and study their relations with highest we......

Outer Automorphism Groups of Contragredient Lie Superalgebras

期刊: ALGEBRAS AND REPRESENTATION THEORY, ; ()

Let g be a complex contragredient Lie superalgebra, and let D be its distinguished extended Dynkin diagram. Let Aut(g) be the automorphism group of g,......

Pre-modular Fusion Categories of Small Global Dimensions

期刊: ALGEBRAS AND REPRESENTATION THEORY, ; ()

We first prove an analogue of Lagrange theorem for global dimensions of fusion categories, then we give a complete classifications of pre-modular fusi......

On a Class of Infinite Simple Lie Conformal Algebras

期刊: ALGEBRAS AND REPRESENTATION THEORY, ; ()

In this paper, we study a class of infinite simple Lie conformal algebras associated to a class of generalized Block type Lie algebras. The central ex......

Higher Jones Algebras and their Simple Modules

期刊: ALGEBRAS AND REPRESENTATION THEORY, 2020; 23 (2)

Let G be a connected reductive algebraic group over a field of positive characteristic p and denote by T the category of tilting modules for G. The hi......

Generalized Characters for Glider Representations of Groups

期刊: ALGEBRAS AND REPRESENTATION THEORY, 2020; 23 (2)

Glider representations can be defined for a finite algebra filtration FKG determined by a chain of subgroups 1 subset of G(1) subset of horizontal ell......

Degenerate 0-Schur Algebras and Nil-Temperley-Lieb Algebras

期刊: ALGEBRAS AND REPRESENTATION THEORY, 2020; 23 (3)

In Jensen and Su (J. Pure Appl. Algebra 219(2), 277-307 2014) constructed 0-Schur algebras, using double flag varieties. The construction leads to a p......

The Extension Dimension of Abelian Categories

期刊: ALGEBRAS AND REPRESENTATION THEORY, 2020; 23 (3)

Let A be an abelian category having enough projective objects and enough injective objects. We prove that if A admits an additive generating object, t......

Examples of Finite Dimensional Algebras which do not Satisfy the Derived Jordan-Holder Property

期刊: ALGEBRAS AND REPRESENTATION THEORY, 2020; 23 (4)

We construct a matrix algebra ?(A,B) from two given finite dimensional elementary algebrasAandBand give some sufficient conditions onAandBunder which ......

Simplicity of Kac Modules for the Quantum General Linear Superalgebra

期刊: ALGEBRAS AND REPRESENTATION THEORY, 2020; 23 (4)

A general necessary and sufficient condition is obtained for a Kac module of the quantum general linear superalgebra to be simple. More explicit condi......

Modular Representation Theory of Affine and Cyclotomic Yokonuma-Hecke Algebras

期刊: ALGEBRAS AND REPRESENTATION THEORY, 2020; 23 (4)

We explore the modular representation theory of affine and cyclotomic Yokonuma-Hecke algebras. We provide an equivalence between the category of finit......

Generalized Oscillator Representations of the Twisted Heisenberg-Virasoro Algebra

期刊: ALGEBRAS AND REPRESENTATION THEORY, 2020; 23 (4)

In this paper, we first obtain a general result on sufficient conditions for tensor product modules to be simple over an arbitrary Lie algebra. We cla......

Cotwists of Bicomonads and BiHom-bialgebras

期刊: ALGEBRAS AND REPRESENTATION THEORY, 2020; 23 (4)

This paper presents the definition of the cotwists of a bicomonad, which offers a generalization of cotwists of bimonoids in duoidal categories. We sh......

Tate-Hochschild Cohomology of Radical Square Zero Algebras

期刊: ALGEBRAS AND REPRESENTATION THEORY, 2020; 23 (1)

For algebras with radical square zero, we give a combinatorial description to the Tate-Hochschild cohomology. We compute the Gerstenhaber algebra stru......

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