English

Elliptic asymptotic behaviour of $q$-Painlev\'e transcendents

Classical Analysis and ODEs 2025-06-09 v1 Mathematical Physics math.MP

Abstract

The discrete Painlev\'e equations have mathematical properties closely related to those of the differential Painlev\'e equations. We investigate the appearance of elliptic functions as limiting behaviours of qq-Painlev\'e transcendents, analogous to the asymptotic theory of classical Painlev\'e transcendents. We focus on the qq-difference second Painlev\'e equation in the asymptotic regime q11|q-1|\ll1, showing that generic leading-order behaviour is given in terms of elliptic functions and that the slow modulation in this behaviour is approximated in terms of complete elliptic integrals.

Keywords

Cite

@article{arxiv.2506.05724,
  title  = {Elliptic asymptotic behaviour of $q$-Painlev\'e transcendents},
  author = {Joshua Holroyd},
  journal= {arXiv preprint arXiv:2506.05724},
  year   = {2025}
}