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Let $G$ be a non-compact simple Lie group with Lie algebra $\mathfrak{g}$. Denote with $m(\mathfrak{g})$ the dimension of the smallest non-trivial $\mathfrak{g}$-module with an invariant non-degenerate symmetric bilinear form. For an…

Differential Geometry · Mathematics 2011-09-29 Gestur Olafsson , Raul Quiroga-Barranco

Given a direct sum $A$ of full matrix algebras, if there is a combinatorial interpretation associated with both the dimension of $A$ and the dimensions of the irreducible $A$-modules, then this can be thought of as providing an analogue of…

Combinatorics · Mathematics 2025-07-04 John M. Campbell

When $\Gamma$ is a row-finite di(rected )graph we classify all finite dimensional modules of the Leavitt path algebra $L(\Gamma)$ via an explicit Morita equivalence given by an effective combinatorial (reduction) algorithm on the digraph…

Rings and Algebras · Mathematics 2017-04-19 Ayten Koç , Murad Özaydın

We give a new interpretation of representation theory of the finite-dimensional half-integer weight modules over the queer Lie superalgebra $\mathfrak{q}(n)$. It is given in terms of Brundan's work of finite-dimensional integer weight…

Representation Theory · Mathematics 2016-10-25 Shun-Jen Cheng , Jae-Hoon Kwon

Let n be a positive integer, and let R be a finitely presented (but not necessarily finite dimensional) associative algebra over a computable field. We examine algorithmic tests for deciding (1) if every n-dimensional representation of R is…

Rings and Algebras · Mathematics 2007-05-23 Edward S. Letzter

Let $M$ be a finitely generated module over a free twisted commutative algebra $A$ that is finitely generated in degree one. We show that the projective dimension of $M({\bf C}^n)$ as an $A({\bf C}^n)$-module is eventually linear as a…

Commutative Algebra · Mathematics 2026-05-08 Steven V Sam , Andrew Snowden

Methods are developed for systematically constructing the finite dimensional irreducible representations of the super Yangian Y(gl(M|N)) associated with the Lie superalgebra gl(M|N). It is also shown that every finite dimensional…

q-alg · Mathematics 2009-10-28 R. B. Zhang

We prove that if $V$ is a conical simple self-dual quasi-lisse vertex algebra and $M$ is an ordinary module then $\dim X_M=\dim X_V$. Hence, if moreover $X_V$ is irreducible then $X_M=X_V$. In particular, this applies to quasi-lisse simple…

Quantum Algebra · Mathematics 2025-11-05 Juan Villarreal

We consider quotients of the group algebra of the $3$-string braid group $B_3$ by $p$-th order generic polynomial relations on the elementary braids. In cases $p=2,3,4,5$ these quotient algebras are finite dimensional. We give…

Representation Theory · Mathematics 2019-01-23 Pavel Pyatov , Anastasia Trofimova

In present work, we find a class of Lie algebras, which are defined from the symmetrizable generalized intersection matrices. However, such algebras are different from generalized intersection matrix algebras and intersection matrix…

Quantum Algebra · Mathematics 2014-10-07 Li-meng Xia , Naihong Hu

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

A self-contained introduction to infinite dimensional representations over a tame hereditary algebra is provided, assuming a basic knowledge of the category of finite dimensional representations. This includes a complete description of all…

Representation Theory · Mathematics 2026-05-01 Lidia Angeleri Hügel , Andrew Hubery , Henning Krause

In this article, we construct affine group schemes $GL(X)$ where $X$ is any object in the Verlinde category in characteristic $p$ and classify their irreducible representations. We begin by showing that for a simple object $X$ of…

Representation Theory · Mathematics 2022-03-08 Siddharth Venkatesh

Let $E/F$ be a quadratic extension of non-Archimedean local fields of characteristic 0. Let $D$ be the unique quaternion division algebra over $F$ and fix an embedding of $E$ to $D$. Then, $\mathrm{GL}_m(D)$ can be regarded as a subgroup of…

Number Theory · Mathematics 2021-03-11 Miyu Suzuki

We study the semisimplification of the full karoubian subcategory generated by the irreducible finite dimensional representations of the algebraic supergroup $GL(m|n)$ over an algebraically closed field of characteristic zero. This…

Representation Theory · Mathematics 2025-02-04 Thorsten Heidersdorf , Rainer Weissauer

The injective polynomial modules for a general linear group $G$ of degree $n$ are labelled by the partitions with at most $n$ parts. Working over an algebraically closed field of characteristic $p$, we consider the question of which…

Representation Theory · Mathematics 2017-04-11 Stephen Donkin , Haralampos Geranios

The construction approach proposed in the previous paper Ref. 1 allows us there and in the present paper to construct at generic deformation parameter $q$ all finite--dimensional representations of the quantum Lie superalgebra…

High Energy Physics - Theory · Physics 2009-10-28 Nguyen Anh Ky , N. Stoilova

Motivated by the study of (m,n)-quasitilted algebras, which are the piecewise hereditary algebras obtained from quasitilted algebras of global dimension two by a sequence of (co)tiltings involving n-1 tilting modules and m-1 cotilting…

Representation Theory · Mathematics 2017-09-22 Diane Castonguay , Edson Ribeiro Alvares , Patrick Le Meur , Tanise Carnieri Pierin

We construct all finite irreducible modules over Lie conformal superalgebras of type K

Mathematical Physics · Physics 2014-11-20 Carina Boyallian , Victor G. Kac , Jose I. Liberati

We give an example of geometric construction (via Hecke correspondences) of certain representations of the affine Lie algebra $\hat{gl}_n$. The construction is similar to the one of [FK] for the Lie algebra $sl_n$. Given a surface with a…

Algebraic Geometry · Mathematics 2016-09-07 Michael Finkelberg , Alexander Kuznetsov