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A. Dzhumadil'daev classified all irreducible finite dimensional representations of the simple n-Lie algebra. Using a slightly different approach, we obtain in this paper a complete classification of all irreducible, highest weight modules,…

Representation Theory · Mathematics 2015-12-14 Dana Balibanu , Johan van de Leur

We construct quantization of semisimple conjugacy classes of the exceptional group $G=G_2$ along with and by means of their exact representations in highest weight modules of the quantum group $U_q(\mathfrak{g})$. With every point $t$ of a…

Quantum Algebra · Mathematics 2016-09-09 Alexander Baranov , Andrey Mudrov , Vadim Ostapenko

We provide criteria for the cyclotomic quiver Hecke algebras of type C to be semisimple. In the semisimple case, we construct the irreducible modules.

Representation Theory · Mathematics 2018-02-20 Liron Speyer

We prove that for any finite-dimensional differential graded algebra with separable semisimple part the category of perfect modules is equivalent to a full subcategory of the category of perfect complexes on a smooth projective scheme with…

Algebraic Geometry · Mathematics 2020-03-18 Dmitri Orlov

Possible irreducible holonomy algebras $\g\subset\osp(p,q|2m)$ of Riemannian supermanifolds under the assumption that $\g$ is a direct sum of simple Lie superalgebras of classical type and possibly of a one-dimensional center are…

Differential Geometry · Mathematics 2018-08-21 Anton S. Galaev

We introduce the notion of a subregular subalgebra, which we believe is useful for classification of subalgebras of Lie algebras. We use it to construct a non-regular invariant generalized complex structure on a Lie group. As an…

Algebraic Geometry · Mathematics 2017-01-03 Evgeny Mayanskiy

Let $\mathfrak{C}$ be a multifusion 2-category. We show that every finite semisimple $\mathfrak{C}$-module 2-category is canonically enriched over $\mathfrak{C}$. Using this enrichment, we prove that every finite semisimple…

Quantum Algebra · Mathematics 2024-12-13 Thibault D. Décoppet

For an arbitrary simple Lie algebra $\g$ and an arbitrary root of unity $q,$ the closed subsets of the Weyl alcove of the quantum group $U_q(\g)$ are classified. Here a closed subset is a set such that if any two weights in the Weyl alcove…

Quantum Algebra · Mathematics 2007-05-23 Stephen F. Sawin

The fine abelian group gradings on the simple exceptional classical Lie superalgebras over algebraically closed fields of characteristic 0 are determined up to equivalence.

Rings and Algebras · Mathematics 2011-01-31 Cristina Draper , Alberto Elduque , Candido Martin-Gonzalez

We classify abelian subgroups of the automorphism group of any compact simple Lie algebra whose centralizer has the same dimension as the dimension of the subgroup. This leads to a classification of the maximal abelian subgroups of compact…

Group Theory · Mathematics 2021-02-08 Jun Yu

Representation theory of Lie (super)algebras has attracted significant research interest for many years, especially due to its applications in theoretical physics; in this regard, the representation theory of affine Lie (super)algebras is…

Representation Theory · Mathematics 2026-02-03 Asghar Daneshvar , Hajar Kiamehr , Malihe Yousofzadeh

Let $\mathcal{O}_q(G)$ be the quantized algebra of regular functions on a semisimple simply connected compact Lie group $G$. Simple unitarizable left $\mathcal{O}_q(G)$-module are classified. In this article, we compute their…

Operator Algebras · Mathematics 2017-09-26 Partha Sarathi Chakraborty , Bipul Saurabh

We show that the category O for a rational Cherednik algebra of type A is equivalent to modules over a q-Schur algebra (parameter not a half integer), providing thus character formulas for simple modules. We give some generalization to…

Representation Theory · Mathematics 2007-12-03 Raphael Rouquier

We overview classifications of simple infinite-dimensional complex $\mathbb{Z}$-graded Lie (super)algebras of polynomial growth, and their deformations. A subset of such Lie (super)algebras consist of vectorial Lie (super)algebras whose…

Representation Theory · Mathematics 2024-06-25 Dimitry Leites , Irina Shchepochkina

The $(q, \mathbf{Q})$-current algebra associated with the general linear Lie algebra was introduced by the second author in the study of representation theory of cyclotomic $q$-Schur algebras. In this paper, we study the $(q,…

Representation Theory · Mathematics 2020-05-08 Ryosuke Kodera , Kentaro Wada

For the algebra $A$ in the title, its prime, primitive and maximal spectra are classified. The group of automorphisms of $A$ is determined. The simple unfaithful $A$-modules and the simple weight $A$-modules are classified.

Rings and Algebras · Mathematics 2015-09-17 V. V. Bavula , T. Lu

We give the algebraic and geometric classification of complex four-dimensional Jordan superalgebras. In particular, we describe all irreducible components in the corresponding varieties.

Rings and Algebras · Mathematics 2025-10-09 Kobiljon Abdurasulov , Roman Lubkov , Azamat Saydaliyev

The description of irreducible finite dimensional representations of finite dimensional solvable Lie superalgebras over complex numbers given by V.~Kac is refined. In reality these representations are not just induced from a polarization…

Representation Theory · Mathematics 2007-05-23 Alexander Sergeev

We prove a conjecture for the irreducibility of singular Gelfand-Tsetlin modules. We describe explicitly the irreducible subquotients of certain classes of singular Gelfand-Tsetlin modules.

Representation Theory · Mathematics 2016-12-05 Carlos Alexandre Gomes , Luis Enrique Ramirez

In this paper, we introduce the concept of (super-)multiplier-rank for Lie superalgeras and classify all the finite-dimensional nilpotent Lie superalgebras of multiplier-rank $\leq 2$ over an algebraically closed field of characteristic…

Rings and Algebras · Mathematics 2020-09-03 Wende Liu , Yingling Zhang