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Irreducible nonzero level modules with finite-dimensional weight spaces are studied for non-twisted affine Lie superalgebras. A complete classification is obtained for superalgebras A(m,n)^ and C(n)^. In other cases the classification…

Representation Theory · Mathematics 2007-10-20 S. Eswara Rao , Vyacheslav Futorny

Let $\mathcal{W}(b)$ be a class of free Lie conformal algebras of rank $2$ with $\mathbb{C}[\partial]$-basis ${L,H}$ and relations \begin{eqnarray*} [L_\lambda L]=(\partial+2\lambda)L,\ \ [L_\lambda H]=\big(\partial+(1-b)\lambda\big)H, \ \…

Rings and Algebras · Mathematics 2018-09-14 Kaijing Ling , Lamei Yuan

$Vect(N)$, the algebra of vector fields in $N$ dimensions, is studied. Some aspects of local differential geometry are formulated as $Vect(N)$ representation theory. There is a new class of modules, {\it conformal fields}, whose…

High Energy Physics - Theory · Physics 2015-06-26 T. A. Larsson

In the present paper, we prove that any finite non-trivial irreducible module over a rank two Lie conformal algebra $\mathcal{H}$ is of rank one. We also describe the actions of $\mathcal{H}$ on its finite irreducible modules explicitly.…

Representation Theory · Mathematics 2021-05-31 Maosen Xu , Yanyong Hong , Zhixiang Wu

In this paper, we classify all irreducible weight modules with finite-dimensional weight spaces over the affine-Virasoro Lie algebra of type $A_1$.

Representation Theory · Mathematics 2016-06-29 Yun Gao , Naihong Hu , Dong Liu

We give a classification of infinite dimensional indecomposable weight modules over the Lie superalgebra $sl(2/1)$.

Quantum Algebra · Mathematics 2007-05-23 Yucai Su

The irreducible alternative superbimodules are studied. The complete classification is obtained for even bimodules of arbitrary dimension and for finite-dimensional irreducible superbimodules over an algebraically closed field.

Rings and Algebras · Mathematics 2014-01-14 Ivan Shestakov , Maria Trushina

We first define a class of non-weight modules over the N=1 Heisenberg-Virasoro superalgebra $\mathfrak{g}$, which are reducible modules. Then we give all submodules of such modules, and present the corresponding irreducible quotient modules…

Representation Theory · Mathematics 2025-08-13 Ziqi Hong , Haibo Chen , Yucai Su

We classify all continuous degenerate irreducible modules over the exceptional linearly compact Lie superalgebra E(1, 6), and all finite degenerate irreducible modules over the exceptional Lie conformal superalgebra CK6, for which E(1, 6)…

Mathematical Physics · Physics 2015-05-30 Carina Boyallian , Victor G. Kac , José I. Liberati

In this paper, we introduce two kinds of Lie conformal algebras associated with the loop Schr\"odinger-Virasoro Lie algebra and the extended loop Schr\"odinger-Virasoro Lie algebra, respectively. The conformal derivations, the second…

Quantum Algebra · Mathematics 2015-12-23 Haibo Chen , Jianzhi Han , Yucai Su , Ying Xu

We obtain a complete classification of all finite-dimensional irreducible modules over classical map superalgebras, provide formulas for their (super)characters and a description of their extension groups. Furthermore, we describe the block…

Representation Theory · Mathematics 2021-05-17 Lucas Calixto , Tiago Macedo

In this paper, we define and study Whittaker modules for the super-Viraoro algebras, including the Neveu-Schwarz algebra and the Ramond algebra. We classify the simple Whittaker modules and obtain necessary and sufficient conditions for…

Representation Theory · Mathematics 2018-10-31 Dong Liu , Yufeng Pei , Limeng Xia

We classify all conformal irreducible modules of finite type over the Cheng Kac superalgebra CK(6).

Representation Theory · Mathematics 2012-04-04 Consuelo Martínez , Efim Zelmanov

In this paper, we give a construction of simple modules generalizing and including both highest weight and Whittaker modules for the Neveu-Schwarz algebra, in the spirit of the work of Mazorchuk and Zhao on simple Virasoro modules. We…

Representation Theory · Mathematics 2019-06-21 Dong Liu , Yufeng Pei , Limeng Xia

Irreducibilities of Verma modules over a class of Block type Lie algebras are completely determined. The approach developed in the present paper can be used to deal with non-weight modules.

Quantum Algebra · Mathematics 2021-09-02 Qiufan Chen , Jianzhi Han

In this paper, a new class of $\Z$-graded Lie conformal algebras $\CW(a,c)$ of infinite rank is constructed. The conformal derivations and one-dimensional central extensions of $\CW(a,c)$ are completely determined. And all conformal modules…

Rings and Algebras · Mathematics 2017-02-22 Guangzhe Fan , Qiufan Chen , Jianzhi Han

We classify irreducible finite-dimensional modules of a collection of real Lie superalgebras that includes the simple ones, their classical variants, complex Lie superalgebras after restriction of scalars, and all real Lie algebras. Our…

Representation Theory · Mathematics 2026-04-13 Siddhartha Sahi , Hadi Salmasian , Vera Serganova

Let $G$ be a rank $n$ additive subgroup of $\bC$ and $\Vir[G]$ the corresponding Virasoro algebra of rank $n$. In the present paper, irreducible weight modules with finite dimensional weight spaces over $\Vir[G]$ are completely determined.…

Representation Theory · Mathematics 2019-08-09 Rencai Lu , Kaiming Zhao

In this paper, all irreducible weight modules with finite dimensional weight spaces over the twisted Heisenberg-Virasoro algebra are determined. There are two different classes of them. One class is formed by simple modules of intermediate…

Representation Theory · Mathematics 2019-08-09 Rencai Lu , Kaiming Zhao

The goal of this paper is to study the representation theory of a classical infinite-dimensional Lie algebra - the Lie algebra of vector fields on an N-dimensional torus for N > 1. The case N=1 gives a famous Virasoro algebra (or its…

Representation Theory · Mathematics 2011-09-01 Yuly Billig , Vyacheslav Futorny