The Modified Toda Hierarchy
Exactly Solvable and Integrable Systems
2024-12-12 v2 Mathematical Physics
math.MP
Abstract
In this paper, modified Toda (mToda) equation is generalized to form an integrable hierarchy in the framework of Sato theory, which is therefore called mToda hierarchy. Inspired by the fact that Toda hierarchy is 2-component generalization of usual KP hierarchy, mToda hierarchy is constructed from bilinear equations of 2-component first modified KP hierarchy, where we provide the corresponding equivalence with Lax formulations. Then it is demonstrated that there are Miura links between Toda and mToda hierarchies, which means the definition of mToda hierarchy here is reasonable. Finally, Darboux transformations of the Toda and mToda hierarchies are also constructed by using the aforementioned Miura links.
Cite
@article{arxiv.2408.09450,
title = {The Modified Toda Hierarchy},
author = {Wenjuan Rui and Wenchuang Guan and Yi Yang and Jipeng Cheng},
journal= {arXiv preprint arXiv:2408.09450},
year = {2024}
}