English

Tau Functions of (n,1) curves and Soliton Solutions on Non-Zero Constant Backgrounds

Exactly Solvable and Integrable Systems 2021-07-14 v1 Mathematical Physics Algebraic Geometry math.MP Quantum Algebra

Abstract

We study the tau function of the KP-hierarchy associated with an (n,1) curve yn=xαy^n=x-\alpha. If α=0\alpha=0 the corresponding tau function is 1. On the other hand if α0\alpha\neq 0 the tau function becomes the exponential of a quadratic function of the time variables. By applying vertex opertaors to the latter we obtain soliton solutions on non-zero constant backgrounds.

Keywords

Cite

@article{arxiv.2011.10691,
  title  = {Tau Functions of (n,1) curves and Soliton Solutions on Non-Zero Constant Backgrounds},
  author = {Atsushi Nakayashiki},
  journal= {arXiv preprint arXiv:2011.10691},
  year   = {2021}
}

Comments

27 pages, no figure