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math.CO2026
Further refinements of Euler-Mahonian statistics for multipermutations
Kaimei Huang, Yongzhou Wen, Sherry H. F. Yan
Permutation statistics constitute a classical subject of enumerative combinatorics. In her study of the genus zeta function, Denert discovered a new Mahonian statistic for permutat…
math.CO2025
Further results on -Euler-Mahonian statistics
Kaimei Huang, Sherry H. F. Yan
As natural generalizations of the descent number ($\des$) and the major index ($\maj$), Rawlings introduced the notions of the -descent number ($r\des$) and the -major index…
math.CO2024
On a conjecture concerning the -Euler-Mahonian statistic on permutations
Kaimei Huang, Zhicong Lin, Sherry H. F. Yan
A pair of permutation statistics is said to be -Euler-Mahonian if and , are e…