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Related papers: Structure of Intermediate Wakimoto Modules

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We classify and explicitly construct the embedding diagrams of Verma modules over the N=2 supersymmetric extension of the Virasoro algebra. The essential ingredient of the solution consists in drawing the distinction between two different…

High Energy Physics - Theory · Physics 2007-05-23 A M Semikhatov , V A Sirota

We develop some basic properties such as $p$-centers of affine vertex algebras and free field vertex algebras in prime characteristic. We show that the Wakimoto-Feigin-Frenkel homomorphism preserves the $p$-centers by providing explicit…

Quantum Algebra · Mathematics 2017-01-20 Tomoyuki Arakawa , Weiqiang Wang

We generalize Feigin and Miwa's construction of extended vertex operator (super)algebras $A_{k}(sl(2))$ for other types of simple Lie algebras. For all the constructed extended vertex operator (super)algebras, irreducible modules are…

Quantum Algebra · Mathematics 2009-10-31 Haisheng Li

We develop a general technique of constructing new irreducible weight modules for any affine Kac-Moody algebra using the parabolic induction, in the case when the Levi factor of a parabolic subalgebra is infinite-dimensional and the central…

Representation Theory · Mathematics 2022-01-20 Marcela Guerrini , Iryna Kashuba , Oscar Morales , André de Oliveira , Fernando Junior Santos

A family of vertex algebras whose universal Verma modules coincide with the cohomology of affine Laumon spaces is found. This result is based on an explicit expression for the generating function of Poincare polynomials of these spaces.…

Quantum Algebra · Mathematics 2023-06-21 Thomas Creutzig , Duiliu-Emanuel Diaconescu , Mingyang Ma

We describe Borel and parabolic subalgebras of affine Lie superalgebras and study the Verma type modules associated to such subalgebras. We give necessary and sufficient conditions under which these modules are simple.

Representation Theory · Mathematics 2018-12-18 Lucas Calixto , Vyacheslav Futorny

We provide an explicit combinatorial realization of all simple and injective (hence, and projective) modules in the category of bounded $\mathfrak{sp}(2n)$-modules. This realization is defined via a natural tableaux correspondence between…

Representation Theory · Mathematics 2025-01-03 Vyacheslav Futorny , Dimitar Grantcharov , Luis Enrique Ramirez , Pablo Zadunaisky

A practical method for constructing a nontrivial homomorphsim between Verma modules is described.

Representation Theory · Mathematics 2007-05-23 W. A. de Graaf

We construct a bijection between admissible representations for an affine Lie algebra $\mathfrak{g}$ at boundary admissible levels and $\mathbb{C}^\times$ fixed points in homogeneous elliptic affine Springer fibres for the Langlands dual…

Representation Theory · Mathematics 2024-04-03 Peng Shan , Dan Xie , Wenbin Yan

We show that the poset of alternating sign matrices, with Bruhat order, is isomorphic to the poset of certain submodules of the dominant Verma module for the special linear Lie algebra $\frak{sl}_n$. The latter poset consists of the…

Representation Theory · Mathematics 2021-08-18 Hankyung Ko

A representation of the quantum affine algebra $U_{q}(\hat{sl_{2}})$ of an arbitrary level $k$ is realized in terms of three boson fields, whose $q \rightarrow 1$ limit becomes the Wakimoto representation. An analogue of the screening…

High Energy Physics - Theory · Physics 2008-02-03 J. Shiraishi

We construct solitons in affine orbifold nets associated with outer automorphisms, and we show that our construction gives all the twisted representations of the fixed point subnet. This allows us to settle a number of questions concerning…

Operator Algebras · Mathematics 2010-02-16 Feng Xu

In this paper we investigate one Wakimoto-type construction of affine Kac-Moody algebras. We obtain a version of the regular representation, on which the affine algebra acts from the left and from the right with the sum of levels equal to…

High Energy Physics - Theory · Physics 2026-03-27 B. Feigin , S. Parkhomenko

We introduce the techniques of semiregular bimodules over a Lie algebra with respect to a Lie subalgebra. Using this techniques in the case of affine Lie algebras we introduce twisting functors on the categories of modules. These functors…

q-alg · Mathematics 2008-02-03 Sergey Arkhipov

We study the homomorphisms between scalar generalized Verma modules. We conjecture that any homomorphism between is composition of elementary homomorphisms. The purpose of this article is to show the conjecture is affirmative for many…

Representation Theory · Mathematics 2019-02-20 Hisayosi Matumoto

We construct integral models of Shimura varieties of abelian type with parahoric level structure over odd primes. These models are \'etale locally isomorphic to corresponding local models.

Number Theory · Mathematics 2026-04-10 Mark Kisin , Georgios Pappas , Rong Zhou

We construct a bosonization of the quantum superalgebra $U_q(\hat{sl}(N|1))$ for an arbitrary level $k$. We construct the screening that commutes with the quantum superalgebra for an arbitrary level $k \neq -N+1$. We propose a bosonization…

Exactly Solvable and Integrable Systems · Physics 2019-02-04 Takeo Kojima

We calculate the Borel-Moore homology of affine Springer fibers of type $A$ associated to some regular semisimple nil elliptic elements. As a result, we obtain bigraded $\mf{S}_{n}$-modules whose bigraded Frobenius series are generalization…

Algebraic Geometry · Mathematics 2012-03-28 Tatsuyuki Hikita

We construct new families of positive energy representations of affine vertex algebras together with their free field realizations by using localization technique. We introduce the twisting functor T_\alpha on the category of modules over…

Representation Theory · Mathematics 2020-10-28 Vyacheslav Futorny , Libor Křižka

We construct Wakimoto modules for twisted affine Lie algebras, and interpret the construction in terms of vertex algebras and their twisted modules. Using the Wakimoto realization, we prove the Kac-Kazhdan conjecture on the characters of…

Quantum Algebra · Mathematics 2007-05-23 Matthew Szczesny