1 citations · 2 across the 4 of their papers we have counts for
Showing math.RTShow all
2 papers · 1 filter
math.RT2020
Lusztig polytopes and FFLV polytopes
Xin Fang, Gleb Koshevoy
In this paper we prove that in type , the Feigin-Fourier-Littelmann-Vinberg (FFLV) polytope coincides with the Minkowski sum of Lusztig polytopes arising from various redu…
math.RT2018
Degenerate Schubert Varieties in Type A
Rocco Chirivi', Xin Fang, Ghislain Fourier
We introduce rectangular elements in the symmetric group. In the framework of PBW degenerations, we show that in type A the degenerate Schubert variety associated to a rectangular…