2019
DOI: 10.48550/arxiv.1912.07710
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Local Weyl modules and fusion products for the current superalgebra $\mathfrak{sl}(1|2)[t]$

Abstract: We study a class modules, called Chari-Venkatesh modules, for the current superalgebra sl(1|2) [t]. This class contains other important modules, such as graded local Weyl, truncated local Weyl and Demazure-type modules. We prove that Chari-Venkatesh modules can be realized as fusion products of generalized Kac modules. In particular, this proves Feigin and Loktev's conjecture, that fusion products are independent of their fusion parameters, in the case where the fusion factors are generalized Kac modules. As a… Show more

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Cited by 2 publications
(2 citation statements)
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“…This same phenomenon occurs in the context of quantum affine algebras [13] for the limit q 1 of simple modules. By now, the notion of Weyl modules has been intensively studied in a broader range of contexts such as for algebras of the form g A, where g is either a symmetrizable Kac-Moody algebra or a super Lie algebra and A is an associative commutative unital algebra, for quantum affine algebras at roots of unity, and for hyper loop algebras [1,2,3,5,6,9,28,29,30,36,44].…”
Section: Introductionmentioning
confidence: 99%
“…This same phenomenon occurs in the context of quantum affine algebras [13] for the limit q 1 of simple modules. By now, the notion of Weyl modules has been intensively studied in a broader range of contexts such as for algebras of the form g A, where g is either a symmetrizable Kac-Moody algebra or a super Lie algebra and A is an associative commutative unital algebra, for quantum affine algebras at roots of unity, and for hyper loop algebras [1,2,3,5,6,9,28,29,30,36,44].…”
Section: Introductionmentioning
confidence: 99%
“…In particular, from the study of the classical (q → 1) limits of simple U q (ĝ ′ )-modules, Chari and Pressley also introduced in [19] the notion of local Weyl modules, which are the type of finite-dimensional g-modules characterized by the property that any finite-dimensional highest-ℓ-weight module is a quotient of the corresponding local Weyl module of the same ℓ-weight. Since the publication of [19], the notion of local Weyl modules has also been generalized to a range of related contexts [5,7,28,13,8,27], and further connections with the theory of Demazure modules and fusion products have also been established in [14,26,48].…”
Section: Introductionmentioning
confidence: 99%