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math.CO2005★ 8 cited
(k,m)-Catalan Numbers and Hook Length Polynomials for Plane Trees
Rosena R. X. Du, Fu Liu
Motivated by a formula of A. Postnikov relating binary trees, we define the hook length polynomials for m-ary trees and plane forests, and show that these polynomials have a simple…
math.CO2004
Ehrhart polynomials of cyclic polytopes
Fu Liu
The Ehrhart polynomial of an integral convex polytope counts the number of lattice points in dilates of the polytope. In math.CO/0402148, the authors conjectured that for any cycli…