Mathematics – Combinatorics
Scientific paper
1994-06-23
J. Comp. Applied Math. 68(1996), 79-101
Mathematics
Combinatorics
Plain TeX
Scientific paper
A generalization of the classical statistics ``maj'' and ``inv'' (the major
index and number of inversions) on words is introduced, parameterized by
arbitrary graphs on the underlying alphabet. The question of characterizing
those graphs that lead to equi-distributed "inv" and "maj" is posed and
answered.
Foata Dominique
Zeilberger Doron
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