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Eulerian calculus. IV: Specializations. (English) Zbl 0856.05098

Summary: Further excedance and descent statistics can be defined on each rearrangement class and their generating functions explicitly calculated. Those generating functions coincide with the classical ones when the rearrangement class is a permutation group, but differs as soon as the class involves repeated elements.

MSC:

05E15 Combinatorial aspects of groups and algebras (MSC2010)
05A15 Exact enumeration problems, generating functions
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