English

Formal solution to the KP hierarchy

Mathematical Physics 2015-10-19 v1 High Energy Physics - Theory math.MP Exactly Solvable and Integrable Systems

Abstract

We find all formal solutions to the \hbar-dependent KP hierarchy. They are characterized by certain Cauchy-like data. The solutions are found in the form of formal series for the tau-function of the hierarchy and for its logarithm (the F-function). An explicit combinatorial description of the coefficients of the series is provided.

Keywords

Cite

@article{arxiv.1509.04472,
  title  = {Formal solution to the KP hierarchy},
  author = {S. Natanzon and A. Zabrodin},
  journal= {arXiv preprint arXiv:1509.04472},
  year   = {2015}
}

Comments

23 pages, no figures

R2 v1 2026-06-22T10:57:00.774Z