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q-Polynômes de Gandhi et statistique de Denert
1999
Discrete Mathematics
Using the q-di erence operator we give q-analogues of the Gandhi polynomials of the ÿrst and second kinds, which are extensions of the Genocchi and median Genocchi numbers, respectively. We provide two combinatorial interpretations of these polynomials in terms of generating functions for Genocchi permutations by some appropriate statistics, one of them being essentially the Denert statistic. We also derive the continued fraction expansions for their ordinary generating functions.
doi:10.1016/s0012-365x(97)00189-1
fatcat:sesx5w5fbzdevhajtudssbl36e