Über die Inversionsstatistiken von MacMahon und Goulden-Jackson
Séminaire lotharingien de combinatoire, Tome 13 (1985)
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We give a bijection which explains the relation between MacMahon's inversion statistic for multiset permutations and Goulden and Jackson's inversion statistic for permutations with increasing blocks. This provides a simple explanation for MacMahon's combinatorial interpretation of the q-multinomial coefficient. The following versions are available: