2004
DOI: 10.1088/0305-4470/37/6/028
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On irreducibility of tensor products of evaluation modules for the quantum affine algebra

Abstract: Every irreducible finite-dimensional representation of the quantized enveloping algebra U q (gl n ) can be extended to the quantum affine algebra U q ( gl n ) via the evaluation homomorphism. We give in explicit form the necessary and sufficient conditions for irreducibility of tensor products of such evaluation modules.

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Cited by 9 publications
(12 citation statements)
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“…The construction of the Gelfand-Tsetlin basis for the representations of quantum gl n goes back to M. Jimbo [8]. We will follow the approach of [11]. To a collection According to the Thomason localization theorem, restriction to the T × C * -fixed point set induces an isomorphism…”
Section: Gelfand-tsetlin Basis Of the Universal Verma Modulementioning
confidence: 99%
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“…The construction of the Gelfand-Tsetlin basis for the representations of quantum gl n goes back to M. Jimbo [8]. We will follow the approach of [11]. To a collection According to the Thomason localization theorem, restriction to the T × C * -fixed point set induces an isomorphism…”
Section: Gelfand-tsetlin Basis Of the Universal Verma Modulementioning
confidence: 99%
“…Let (a kl ) 1≤k,l≤n = A n−1 stand for the Cartan matrix of sl n . The double affine loop algebra U ′ v ( sl n ) is an associative algebra over Q(v) generated by e k,r , f k,r , v ±h k , h k,m (1 ≤ k ≤ n, r ∈ Z, m ∈ Z \ {0}) with the relations (9)(10)(11)(12)(13)(14), where k, l are understood as residues modulo n, so that for instance if k = n then k + 1 = 1.…”
Section: Quantum Toroidal Algebramentioning
confidence: 99%
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“…, where the tensor factors may take any order. In the context of quantum affine algebras U q (ĝ), the irreducibility of the tensor product of fundamental representations has been studied by many authors who used a variety of methods [1,10,12,14,19]. This question was generalized by Chari [4], who gave a concrete irreducibility condition for a tensor product of Kirillov-Reshetikhin modules of quantum affine algebras.…”
Section: Introductionmentioning
confidence: 99%
“…In [4], a dual basis of the canonical basis of the modified quantum enveloping algebra of type A was investigated under the name global IC basis. In [12], the dual canonical basis of U q (n + ) was constructed by using the so-called quantum shuffles, and was shown to be related to the representation theories of Hecke algebras and quantum affine algebras [13] (see also [19]). In [1] Berenstein and Zelevinsky conjectured a multiplicative property, which states that two dual canonical basis elements b 1 , b 2 of U q (n + ) q-commute if and only if b 1 b 2 = q m b for some b in the dual canonical basis and some integer m. The conjecture was studied by using Hall algebra techniques in reference [21].…”
Section: Introductionmentioning
confidence: 99%