Counting permutations with given cycle structure and descent set
Journal of Combinatorial Theory Series A
The distribution of descents in fixed conjugacy classes of the symmetric groups
Journal of Combinatorial Theory Series A
The flag major index and group actions on polynomial rings
European Journal of Combinatorics
Descent Numbers and Major Indices for the Hyperoctahedral Group
Advances in Applied Mathematics
Labeled Partitions and the $q$-Derangement Numbers
SIAM Journal on Discrete Mathematics
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We prove the normality of the limiting distribution of the coefficients of the q-derangement numbers of type B based on the formula of Foata and Han that contains a parameter z. Setting the parameter z to zero, we are led to the case of ordinary q-derangement numbers. For z=1, we obtain the normality of the limiting distribution of the coefficients of the usual q-derangement numbers of type B.