English

Cyclic sieving phenomenon on annular noncrossing permutations

Combinatorics 2012-10-30 v1

Abstract

We show an instance of the cyclic sieving phenomenon on annular noncrossing permutations with given cycle types. We define annular qq-Kreweras numbers, annular qq-Narayana numbers, and annular qq-Catalan number, all of which are polynomials in qq. We then show that these polynomials exhibit the cyclic sieving phenomenon on annular noncrossing permutations. We also show that a sum of annular qq-Kreweras numbers becomes an annular qq-Narayana number and a sum of qq-Narayana numbers becomes an annular qq-Catalan number.

Cite

@article{arxiv.1210.7353,
  title  = {Cyclic sieving phenomenon on annular noncrossing permutations},
  author = {Jang Soo Kim},
  journal= {arXiv preprint arXiv:1210.7353},
  year   = {2012}
}

Comments

12 pages, 3 figures

R2 v1 2026-06-21T22:28:42.213Z