75 citations · 305 across the 41 of their papers we have counts for
Showing 2015 · math.RTShow all
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math.RT2015
Marked chain-order polytopes
Xin Fang, Ghislain Fourier
We introduce in this paper the marked chain-order polytopes associated to a marked poset, generalizing the marked chain polytopes and marked order polytopes by putting them as extr…
math.RT2015★ 3 cited
Torus fixed points in Schubert varieties and normalized median Genocchi numbers
Xin Fang, Ghislain Fourier
We give a new proof for the fact that the number of torus fixed points for the degenerated flag variety is equal to the normalized median Genocchi number, using the identification…
math.RT2015★ 6 cited
PBW-type filtration on quantum groups of type
Xin Fang, Ghislain Fourier, Markus Reineke
We will introduce an -filtration on the negative part of a quantum group of type , such that the associated graded algebra is a q-commutative polynomial algebra. T…