arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0905.0520nlin.SI
收藏

达布变换的统一方法

A unified approach to Darboux transformations

Tuncay Aktosun, Cornelis van der Mee

摘要:

我们分析了与Marchenko方程和Gel'fand-Levitan方程相关的一类积分方程,这些方程与各种常微分算子系统有关。当积分算子被有限秩扰动扰动时,我们明确地评估解的变化。我们展示了如何这一结果提供了一个统一的方法与各种系统的常微分算子的达布变换。我们通过推导Zakharov-Shabat系统的达布变换来说明我们的理论,并显示当将离散本征值添加到谱中时,势和波函数如何变化。

英文摘要:

We analyze a certain class of integral equations related to Marchenko equations and Gel'fand-Levitan equations associated with various systems of ordinary differential operators. When the integral operator is perturbed by a finite-rank perturbation, we explicitly evaluate the change in the solution. We show how this result provides a unified approach to Darboux transformations associated with various systems of ordinary differential operators. We illustrate our theory by deriving the Darboux transformation for the Zakharov-Shabat system and show how the potential and wave function change when a discrete eigenvalue is added to the spectrum.

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。

↑