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math.RT2017
A combinatorial formula for graded multiplicities in excellent filtrations
Rekha Biswal, Deniz Kus
A filtration of a representation whose successive quotients are isomorphic to Demazure modules is called an excellent filtration. In this paper we study graded multiplicities in ex…
math.RT2017
Borel--de Siebenthal pairs, Global Weyl modules and Stanley--Reisner rings
Vyjayanthi Chari, Deniz Kus, Matt Odell
We develop the theory of integrable representations for an arbitrary maximal parabolic subalgebra of an affine Lie algebra. We see that such subalgebras can be thought of as arisin…