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09/25/2022
Burstein's permutation conjecture, Hong and Li's inversion sequence conjecture, and restricted Eulerian distributions
Recently, Hong and Li launched a systematic study of length-four pattern...
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11/10/2021
Rooted quasi-Stirling permutations of general multisets
Given a general multiset ℳ={1^m_1,2^m_2,…,n^m_n}, where i appears m_i ti...
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09/09/2020
Refined Wilf-equivalences by Comtet statistics
We launch a systematic study of the refined Wilf-equivalences by the sta...
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03/26/2020
On 120-avoiding inversion and ascent sequences
Recently, Yan and the first named author investigated systematically the...
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08/11/2019
Bijective recurrences concerning two Schröder triangles
Let r(n,k) (resp. s(n,k)) be the number of Schröder paths (resp. little ...
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10/14/2018
From q-Stirling numbers to the Delta Conjecture: a viewpoint from vincular patterns
The distribution of certain Mahonian statistic (called BAST) introduced ...
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10/14/2018
q-Stirling numbers arising from vincular patterns
The distribution of certain Mahonian statistic (called BAST) introduced ...
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08/26/2017