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math.CO2024
-Whittaker polynomials: bases, branching and direct limits
Aritra Bhattacharya, T V Ratheesh, Sankaran Viswanath
We study -Whittaker polynomials and their monomial expansions given by the fermionic formula, the inv statistic of Haglund-Haiman-Loehr and the quinv statistic of Ayyer-Mandelsh…
math.CO2024
Simple Procedures for Left and Right Keys of Semi-Standard Young Tableaux
Mrigendra Singh Kushwaha, K. N. Raghavan, Sankaran Viswanath
We give simple procedures to obtain the left and right keys of a semi-standard Young tableau. Keys derive their interest from the fact that they encode the characters of Demazure a…