English

Why is my rational Painlev\'e V solution not unique?

Exactly Solvable and Integrable Systems 2023-07-18 v1 Mathematical Physics math.MP

Abstract

Under special conditions the Painlev\'e V equation has more than one rational solution solving it with the same parameters. In the setting of formalism that identifies points on orbits of the fundamental shift operators of A3(1)A^{(1)}_{3} affine Weyl group with rational solutions we derive conditions for such non-uniqueness to occur. We identify the seed solutions from which the non-unique solutions are generated and put forward a method to systematically obtain their closed expressions from the underlying seed solutions.

Keywords

Cite

@article{arxiv.2307.07825,
  title  = {Why is my rational Painlev\'e V solution not unique?},
  author = {H. Aratyn and J. F. Gomes and G. V. Lobo and A. H. Zimerman},
  journal= {arXiv preprint arXiv:2307.07825},
  year   = {2023}
}

Comments

20 pages

R2 v1 2026-06-28T11:31:20.492Z