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Kirillov's non-negativity conjecture for Hecke–Grothendieck and generalized key polynomials
Let $n$ be a positive integer, let $w\in S_n$ be a permutation, let $\zeta$ be a weak composition, and let $\boldsymbol{x}=(x_1,\ldots,x_n)$ . Write…
Conjecturerefutedhecke-grothendieck-polynomials key-polynomials positivityarXiv posted 2 days ago

Kirillov's non-negativity conjecture for Hecke–Grothendieck and generalized key polynomials