Abstract
In the framework of the Toledano Laredo and Gautam approach, we consider the structures of tensor categories on the analogues of the \(\mathfrak{O}\)-category for representations of the super-Yangian \(Y_{\hbar}(A(m,n))\) of the special linear Lie superalgebra and the quantum loop superalgebra \(U_q(LA(m,n))\), and study the relation between them. The basic result is the construction of an isomorphism in the category of Hopf superalgebras between completions of the super-Yangian and quantum loop superalgebra equipped with so-called Drinfeld comultiplications. We formulate the theorem on the equivalence of tensor categories of super-Yangian modules and quantum loop superalgebra modules, which enhances the previous result. We also describe the relation between quasitriangular structures and Abelian difference equations, which are defined by the Abelian parts of the universal \(R\)-matrices.
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Funding
The paper is supported by the Russian Science Foundation (grant No. 21-11-00283). Some of the presented results were thought over during the author’s visit to IHES (Bures-sur-Ivette, France), where his work was also supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (QUASIFT grant agreement 677368).
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Translated from Teoreticheskaya i Matematicheskaya Fizika, 2022, Vol. 213, pp. 129–148 https://doi.org/10.4213/tmf10233.
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Stukopin, V.A. Quasitriangular structures on the super-Yangian and quantum loop superalgebra, and difference equations. Theor Math Phys 213, 1423–1440 (2022). https://doi.org/10.1134/S0040577922100099
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DOI: https://doi.org/10.1134/S0040577922100099