English

On Hankel Determinants for Dyck Paths with Peaks Avoiding Multiple Classes of Heights

Combinatorics 2021-10-25 v2

Abstract

For any integer m2m\ge 2 and a set V{1,,m}V\subset \{1,\dots,m\}, let (m,V)(m,V) denote the union of congruence classes of the elements in VV modulo mm. We study the Hankel determinants for the number of Dyck paths with peaks avoiding the heights in the set (m,V)(m,V). For any set VV of even elements of an even modulo mm, we give an explicit description of the sequence of Hankel determinants in terms of subsequences of arithmetic progression of integers. There are numerous instances for varied (m,V)(m,V) with periodic sequences of Hankel determinants. We present a sufficient condition for the set (m,V)(m,V) such that the sequence of Hankel determinants is periodic, including even and odd modulus mm.

Keywords

Cite

@article{arxiv.2103.06635,
  title  = {On Hankel Determinants for Dyck Paths with Peaks Avoiding Multiple Classes of Heights},
  author = {Hsu-Lin Chien and Sen-Peng Eu and Tung-Shan Fu},
  journal= {arXiv preprint arXiv:2103.06635},
  year   = {2021}
}

Comments

20 pages, European Journal of Combinatorics, 2022

R2 v1 2026-06-23T23:59:41.849Z