English

Hankel determinants and Jacobi continued fractions for $q$-Euler numbers

Number Theory 2023-05-16 v2

Abstract

The qq-analogs of Bernoulli and Euler numbers were introduced by Carlitz. Similar to the recent results on the Hankel determinants for the qq-Bernoulli numbers established by Chapoton and Zeng, we determine parallel evaluations for the qq-Euler numbers. It is shown that the associated Favard-type orthogonal polynomials for qq-Euler numbers are given by a specialization of the big qq-Jacobi polynomials, thereby leading to their corresponding Jacobi continued fraction expression, which eventually serves as a key to our determinant evaluations.

Keywords

Cite

@article{arxiv.2305.06623,
  title  = {Hankel determinants and Jacobi continued fractions for $q$-Euler numbers},
  author = {Shane Chern and Lin Jiu},
  journal= {arXiv preprint arXiv:2305.06623},
  year   = {2023}
}