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Related papers: Crystal bases and monomials for $U_q(G_2)$-modules

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We give a new realization of crystal bases for finite dimensional irreducible modules over special linear Lie algebras using the monomials introduced by H. Nakajima. We also discuss the connection between this monomial realization and the…

Representation Theory · Mathematics 2007-05-23 Seok-Jin Kang , Jeong-Ah Kim , Dong-Uy Shin

We introduce the notion of a crystal base of a finite dimensional q-deformed Kac module over the quantum superalgebra $U_q(\gl(m|n))$, and prove its existence and uniqueness. In particular, we obtain the crystal base of a finite dimensional…

Quantum Algebra · Mathematics 2016-06-21 Jae-Hoon Kwon

In this paper, we give a new realization of crystal bases for finite dimensional irreducible modules over classical Lie algebras. The basis vectors are parameterized by certain Young walls lying between highest weight and lowest weight…

Quantum Algebra · Mathematics 2007-05-23 Seok-Jin Kang , Jeong-Ah Kim , Hyeonmi Lee , Dong-Uy Shin

In this paper, we consider polyhedral realizations for crystal bases $B(\lambda)$ of irreducible integrable highest weight modules of a quantized enveloping algebra $U_q(\mathfrak{g})$, where $\mathfrak{g}$ is a classical affine Lie algebra…

Quantum Algebra · Mathematics 2023-06-14 Yuki Kanakubo

Crystal bases are powerful combinatorial tools in the representation theory of quantum groups $U_q(\mathfrak{g})$ for a symmetrizable Kac-Moody algebras $\mathfrak{g}$. The polyhedral realizations are combinatorial descriptions of the…

Quantum Algebra · Mathematics 2025-03-12 Yuki Kanakubo

We develop a crystal base theory for the general linear Lie superalgebra $gl(m,n)$. We prove that any irreducible $U_q(gl(m,n))$-module in some category has a crystal base, and prove that its associated crystal base is parameterized by…

Quantum Algebra · Mathematics 2007-05-23 Georgia Benkart , Seok-Jin Kang , Masaki Kashiwara

We give a general way of representing the crystal (base) corresponding to the intgrable highest weight modules of quantum Kac-Moody algebras, which is called polyhedral realizations. This is applied to describe explicitly the crystal bases…

Quantum Algebra · Mathematics 2007-05-23 Toshiki Nakashima

We present a list of ``local'' axioms and an explicit combinatorial construction for the regular $B_2$-crystals (crystal graphs of highest weight integrable modules over $U_q(sp_4)$). Also a new combinatorial model for these crystals is…

Representation Theory · Mathematics 2020-01-09 V. I. Danilov , A. V. Karzanov , G. A. Koshevoy

Let $\mathcal{O}^{int}_q(m|n)$ be a semisimple tensor category of modules over a quantum ortho-symplectic superalgebra of type $B, C, D$ introduced in the author's previous work. It is a natural counterpart of the category of finitely…

Quantum Algebra · Mathematics 2016-06-16 Jae-Hoon Kwon

For irreducible integrable highest weight modules of the finite and affine Lie algebras of type A and D, we define an isomorphism between the geometric realization of the crystal graphs in terms of irreducible components of Nakajima quiver…

Representation Theory · Mathematics 2012-02-28 Alistair Savage

The polyhedral realizations for crystal bases of the integrable highest weight modules of $U_q(\mathfrak{g})$ have been introduced in ([T.Nakashima, J. Algebra, vol.219, no. 2, (1999)]), which describe the crystal bases as sets of lattice…

Quantum Algebra · Mathematics 2021-10-28 Yuki Kanakubo , Toshiki Nakashima

In this paper, we give an explicit combinatorial realization of the crystal B(\lambda) for an irreducible highest weight U_q(q(n))-module V(\lambda) in terms of semistandard decomposition tableaux. We present an insertion scheme for…

Representation Theory · Mathematics 2013-07-16 Dimitar Grantcharov , Ji Hye Jung , Seok-Jin Kang , Masaki Kashiwara , Myungho Kim

Using combinatorics of Young tableaux, we give an explicit construction of irreducible graded modules over Khovanov-Lauda-Rouquier algebras $R$ and their cyclotomic quotients $R^{\lambda}$ of type $A_{n}$. Our construction is compatible…

Representation Theory · Mathematics 2010-08-16 Seok-Jin Kang , Euiyong Park

We shall describe explicitly the decoration functions for certain decorated geometric crystals of classical groups and we shall show that they are represented in terms of monomial realizations of crystal bases.

Quantum Algebra · Mathematics 2013-01-31 Toshiki Nakashima

We describe the crystal bases of the modified quantum algebras and give the explicit form of the highest (or lowest) weight vector of its connected component $B_0(\lambda)$ containing the unit element for arbitrary rank 2 cases. We also…

Quantum Algebra · Mathematics 2007-05-23 Ayumu Hoshino

We introduce the notion of dual perfect bases and dual perfect graphs. We show that every integrable highest weight module $V_q(\lambda)$ over a quantum generalized Kac-Moody algebra $U_{q}(\mathcal{g})$ has a dual perfect basis and its…

Representation Theory · Mathematics 2014-05-09 Byeong Hoon Kahng , Seok-Jin Kang , Masaki Kashiwara , Uhi Rinn Suh

We study the crystal graphs of irreducible $U_{v}(\hat{sl}}_{e})$-modules of higher level l. Generalizing works of the first author, we obtain a simple description of the bijections between the classes of multipartitions which naturally…

Representation Theory · Mathematics 2010-06-28 Nicolas Jacon , Cédric Lecouvey

We give a crystal structure on the set of all irreducible components of Lagrangian subvarieties of quiver varieties. One con show that, as a crystal, it is isomorphic to the crystal base of an irreducible highest weight representation of a…

Quantum Algebra · Mathematics 2007-05-23 Yoshihisa Saito

We shall show that for type $A_n$ the realization of crystal bases obtained from the decorated geometric crystals intorduced by Berenstein and Kazhdan coincides with our polyhedral realizations of crystal bases. We also observe certain…

Quantum Algebra · Mathematics 2012-03-12 Toshiki Nakashima

We consider a product of fundamental crystals in monomial realization of type A. Then we shall show that the product holds crystal structure and describe how it is decomposed into irreducible crystals, which is, in general, different from…

Quantum Algebra · Mathematics 2018-08-15 Manal Alshuqayr , Toshiki Nakashima
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