Mahonian STAT STAT on words
Highlights for Mahonian STAT on words by S. Kitaev and V. Vajnovszki. The Mahonian statistic STAT on permutations was extended to a Mahonian statistic on words. A joint equidistribution result involving six statistics on (dense) words was established. An extra statistic preserved by the bijection p of Burstein was found.
statistic equidistribution words and permutations pattern combinatorial problems