2 papers
math.CO2025
Parabolic restrictions and double deformations of weight multiplicities
Cédric Lecouvey
We introduce some (p,q)-deformations of the weight multiplicities for the representations of any simple Lie algebra g over the complex numbers. This is done by associating the inde…
math.CO2025
Macdonald Identities, Weyl-Kac Denominator Formulas and Affine Grassmannian Elements
Cédric Lecouvey, David Wahiche
The Nekrasov-Okounkov formula gives an expression for the Fourier coefficients of the Euler functions as a sum of hook length products. This formula can be deduced from a specializ…