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This article is cited in 1 scientific paper (total in 1 paper)
Shapovalov elements and Hasse diagrams
D. Algethamiab, A. I. Mudrovac a University of Leicester, Leicester, United Kingdom
b University of Bisha, Bisha, Saudi Arabia
c Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow region, Russia
Abstract:
Shapovalov elements of quantum groups are special polynomials in
negative simple root vectors with coefficients in the rational
Cartan subalgebra that relate singular vectors in reducible Verma
modules with their highest vectors. We give explicit expressions for
Shapovalov elements of nonexceptional quantum groups in terms of
matrix elements of quantum $L$-operators using calculations on Hasse
diagrams associated with auxiliary representations.
Keywords:
Shapovalov elements, $R$-matrix, Verma modules, Hasse diagrams.
Received: 31.01.2023 Revised: 31.01.2023
Citation:
D. Algethami, A. I. Mudrov, “Shapovalov elements and Hasse diagrams”, TMF, 216:3 (2023), 405–416; Theoret. and Math. Phys., 216:3 (2023), 1255–1264
Linking options:
https://www.mathnet.ru/eng/tmf10458https://doi.org/10.4213/tmf10458 https://www.mathnet.ru/eng/tmf/v216/i3/p405
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