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arXiv 0909.0667nlin.SImath.AP
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周期散射的Paley-Wiener定理及其对Korteweg-de Vries方程的应用

A Paley-Wiener Theorem for Periodic Scattering with Applications to the Korteweg-de Vries Equation

Iryna Egorova, Gerald Teschl

摘要:

考虑一维薛定谔算子,它是有限能隙算子的短程微扰。我们给出了左、右反射系数的充要条件,使得势差分别对左、右有有限支集。此外,我们应用这些结果显示一个独特的连续型的Korteweg-de Vries方程的解决方案在这种情况下的结果。借助于Miura变换,对修正的Korteweg-de Vries方程也得到了类似的结果。

英文摘要:

Consider a one-dimensional Schroedinger operator which is a short range perturbation of a finite-gap operator. We give necessary and sufficient conditions on the left, right reflection coefficient such that the difference of the potentials has finite support to the left, right, respectively. Moreover, we apply these results to show a unique continuation type result for solutions of the Korteweg-de Vries equation in this context. By virtue of the Miura transform an analogous result for the modified Korteweg-de Vries equation is also obtained.

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。

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