English

The single-indexed exceptional Krawtchouk polynomials

Classical Analysis and ODEs 2022-02-01 v1

Abstract

The Darboux transformations of Krawtchouk polynomials are investigated and all possible exceptional Krawtchouk polynomials obtainable from a single-step Darboux transformation are considered. The properties of these exceptional Krawtchouk polynomials including the Diophantine ones and the recurrence relations are obtained.

Cite

@article{arxiv.2201.12359,
  title  = {The single-indexed exceptional Krawtchouk polynomials},
  author = {Hiroshi Miki and Satoshi Tsujimoto and Luc Vinet},
  journal= {arXiv preprint arXiv:2201.12359},
  year   = {2022}
}

Comments

19 pages

R2 v1 2026-06-24T09:08:02.058Z