Séminaire Lotharingien de Combinatoire, B55b (2006), 6 pp.
On Derangement Polynomials of Type B
Wachs [Proc. Amer. Math. Soc. 106 (1989), 273-278]
studied the q-enumeration of derangements in the symmetric group
Sn by the major index and obtained a q-analogue of the
classical derangement number. We consider in this work the
q-enumeration of derangements in the hyperoctahedral group
the flag major index and obtain a q-analogue of the type B
Received: February 14, 2006.
Accepted: March 24, 2006.
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