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This paper is a continuation of earlier work of Arslan \cite{Ars}, who introduced the Mahonian number of type $B$ by using a new statistic on the hyperoctahedral group $B_{n}$, in response to questions he suggested in his paper entitled "{\it A combi
Externí odkaz:
http://arxiv.org/abs/2408.02424
In this paper, we propose the number of permutations of length $n$ having $k$ overlined inversions, which we call over-Mahonian number. We study useful properties and some combinatorial interpretations by lattice paths/overpartitions and tilings. Fur
Externí odkaz:
http://arxiv.org/abs/2406.10487