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We generalize fundamental notions of higher algebra, traditionally developed within the $\infty$-category of spectra, to the broader setting of $t$-structured tensor triangulated $\infty$-categories ($ttt$-$\infty$-categories). Under a…

Category Theory · Mathematics 2026-04-09 Jiacheng Liang

For any finitely generated abelian group $Q$, we reduce the problem of classification of $Q$-graded simple Lie algebras over an algebraically closed field of "good" characteristic to the problem of classification of gradings on simple Lie…

Representation Theory · Mathematics 2016-11-29 Volodymyr Mazorchuk , Kaiming Zhao

This paper is devoted to constructing simple modules of the planar Galilean conformal algebra. We study the tensor products of finitely many simple $\mathcal{U}(\mathcal{H})$-free modules with an arbitrary simple restricted module, where…

Representation Theory · Mathematics 2025-07-30 Dashu Xu

We classify all simple bounded highest weight modules of a basic classical Lie superalgebra $\mathfrak g$. In particular, our classification leads to the classification of the simple weight modules with finite weight multiplicities over all…

Representation Theory · Mathematics 2019-01-01 Maria Gorelik , Dimitar Grantcharov

Let ${\mathcal W}_n$ be the Lie algebra of polynomial vector fields. We classify simple weight ${\mathcal W}_n$-modules $M$ with finite weight multiplicities. We prove that every such nontrivial module $M$ is either a tensor module or the…

Representation Theory · Mathematics 2021-02-19 Dimitar Grantcharov , Vera Serganova

This is the first part in a series of papers in which we introduce and develop a natural, general tensor category theory for suitable module categories for a vertex (operator) algebra. This theory generalizes the tensor category theory for…

Quantum Algebra · Mathematics 2013-05-07 Yi-Zhi Huang , James Lepowsky , Lin Zhang

We investigate the algebraic structure of integrable hierarchies that, we propose, underlie models of $W$-gravity coupled to matter. More precisely, we concentrate on the dispersionless limit of the topological subclass of such theories, by…

High Energy Physics - Theory · Physics 2009-10-22 W. Lerche

Reductions of higher tangent bundles of Lie groupoids provide natural examples of geometric structures which we would like to call higher algebroids. Such objects can be also constructed abstractly starting from an arbitrary almost Lie…

Differential Geometry · Mathematics 2014-05-05 Michał Jóźwikowski , Mikołaj Rotkiewicz

Criterion of (Shilov) regularity for weighted algebras $L_1^w(G)$ on a locally compact abelian group $G$ is known by works of Beurling (1949) and Domar (1956). In the present paper this criterion is extended to translation invariant…

Functional Analysis · Mathematics 2015-05-13 Yulia Kuznetsova

We construct explicit bases of simple modules and Bernstein-Gelfand-Gelfand (BGG) resolutions of all simple modules of the (graded) Temperley-Lieb algebra of type B over a field of characteristic zero.

Representation Theory · Mathematics 2021-03-17 Dimitris Michailidis

Each connected graded, graded-commutative algebra $A$ of finite type over a field $\Bbbk$ of characteristic zero defines a complex of finitely generated, graded modules over a symmetric algebra, whose homology graded modules are called the…

Commutative Algebra · Mathematics 2024-07-03 Marian Aprodu , Gavril Farkas , Claudiu Raicu , Alessio Sammartano , Alexander I. Suciu

We describe a logarithmic tensor product theory for certain module categories for a ``conformal vertex algebra.'' In this theory, which is a natural, although intricate, generalization of earlier work of Huang and Lepowsky, we do not…

Quantum Algebra · Mathematics 2008-11-26 Yi-Zhi Huang , James Lepowsky , Lin Zhang

The loop algebra construction by Allison, Berman, Faulkner, and Pianzola, describes graded-central-simple algebras with split centroid in terms of central simple algebras graded by a quotient of the original grading group. Here the…

Rings and Algebras · Mathematics 2019-04-25 Alberto Elduque

We introduce analogues of Soergel bimodules for complex reflection groups of rank one. We give an explicit parametrization of the indecomposable objects of the resulting category and give a presentation of its split Grothendieck ring by…

Representation Theory · Mathematics 2018-12-07 Thomas Gobet , Anne-Laure Thiel

Generalized Weyl Algebras (GWAs) appear in diverse areas of mathematics including mathematical physics, noncommutative algebra, and representation theory. We study the invariants of quantum GWAs under finite automorphisms. We extend a…

Rings and Algebras · Mathematics 2020-12-17 Jason Gaddis , Phuong Ho

In this article, a large class of simple modules over the Schr\"odinger-Virasoro algebra $\mathcal{G}$ are constructed, which include highest weight modules and Whittaker modules. These modules are determined by the simple modules over the…

Representation Theory · Mathematics 2016-08-30 Haibo Chen , Yanyong Hong , Yucai Su

We define analogues of Verma modules for finite W-algebras. By the usual ideas of highest weight theory, this is a first step towards the classification of finite dimensional irreducible modules. Motivated by known results in type A, we…

Representation Theory · Mathematics 2008-08-14 Jonathan Brundan , Simon M. Goodwin , Alexander Kleshchev

The Bershadsky--Polyakov algebras are the subregular quantum hamiltonian reductions of the affine vertex operator algebras associated with $\mathfrak{sl}_3$. In arXiv:2007.00396 [math.QA], we realised these algebras in terms of the regular…

Quantum Algebra · Mathematics 2023-12-01 Drazen Adamovic , Kazuya Kawasetsu , David Ridout

We introduce a generalization of the notion of a Koszul algebra, which includes graded algebras with relations in different degrees, and we establish some of the basic properties of these algebras. This class is closed under twists, twisted…

Rings and Algebras · Mathematics 2007-05-23 Thomas Cassidy , Brad Shelton

It is proved that for a vector space W, any set of parafermion-like vertex operators on W in a certain canonical way generates a generalized vertex algebra in the sense of [DL2] with W as a natural module. This result generalizes a result…

Quantum Algebra · Mathematics 2007-05-23 Yongcun Gao , Haisheng Li