arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math-ph/0703067math-phmath.MPnlin.SI
收藏

非对易KP族形变方程的一种新方法

A new approach to deformation equations of noncommutative KP hierarchies

Aristophanes Dimakis, Folkert Muller-Hoissen

摘要:

部分灵感来自佐藤的理论的Kadomtsev Petviashvili(KP)层次,我们开始与一个相当普遍的层次的线性常微分方程的矩阵空间,并从中推导出一个矩阵Riccati层次。后者则表现出一个潜在的“弱非结合”(WNA)的代数结构,从中我们可以得出结论,与以前的工作,Riccati系统的任何解决方案也解决了潜在的KP层次(在相应的矩阵代数)。然后,我们转向矩阵的分量使用(广义)星积相乘的情况。与变形参数相关联,存在扩大相应KP层级的额外对称性(流动方程)。它们在WNA结构方面有一个紧凑的提法。我们还提出了一个制定的KP层次方程本身的变形流方程。

英文摘要:

Partly inspired by Sato's theory of the Kadomtsev-Petviashvili (KP) hierarchy, we start with a quite general hierarchy of linear ordinary differential equations in a space of matrices and derive from it a matrix Riccati hierarchy. The latter is then shown to exhibit an underlying 'weakly nonassociative' (WNA) algebra structure, from which we can conclude, refering to previous work, that any solution of the Riccati system also solves the potential KP hierarchy (in the corresponding matrix algebra). We then turn to the case where the components of the matrices are multiplied using a (generalized) star product. Associated with the deformation parameters, there are additional symmetries (flow equations) which enlarge the respective KP hierarchy. They have a compact formulation in terms of the WNA structure. We also present a formulation of the KP hierarchy equations themselves as deformation flow equations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑