Weight multiplicity polynomials for affine Kac-Moody algebras of type ${A}_{r}$
Compositio Mathematica, Volume 104 (1996) no. 2, pp. 153-187.
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author = {Benkart, Georgia and Kang, Seok-Jin and Misra, Kailash C.},
title = {Weight multiplicity polynomials for affine {Kac-Moody} algebras of type $A_r$},
journal = {Compositio Mathematica},
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%A Kang, Seok-Jin
%A Misra, Kailash C.
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Benkart, Georgia; Kang, Seok-Jin; Misra, Kailash C. Weight multiplicity polynomials for affine Kac-Moody algebras of type $A_r$. Compositio Mathematica, Volume 104 (1996) no. 2, pp. 153-187. http://archive.numdam.org/item/CM_1996__104_2_153_0/

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