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arXiv 1710.03053math-phmath.MP
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相积分方法中连接矩阵的广义对称关系

Generalized symmetry relations for connection matrices in the phase-integral method

A. G. Kutlin

AI总结:

本文研究相积分方法中二阶常微分方程对称性对连接矩阵的影响,引入有效 Stokes 常数与图的概念,推导对称关系并推广至任意阶常微分方程组。

摘要:

我们考虑将相积分方法应用于任意二阶常微分方程,并研究其对称性如何影响与其通解相关联的连接矩阵。我们引入有效 Stokes 常数的概念,将所得的矩阵精确一般关系化简为其极限情形。我们还提出有效 Stokes 图的概念,它可以作为分析困难方程的有用工具。我们证明可以通过对称变换重叠的有效 Stokes 域与相同的有效 Stokes 常数相关联,并且可以用相同的解析函数描述。基于推导出的对称关系,我们提出一种为有效 Stokes 常数写出泛函方程的方法。最后,我们针对任意阶常微分线性方程组,提供推导出的对称关系的推广。本工作还包含在真实物理问题情形下应用所提出思想的示例。要访问论文的 HTML 版本并与作者讨论,请访问 https://enabla.com/pub/1108。

英文摘要:

We consider the phase-integral method applied to an arbitrary ordinary linear differential equation of the second-order and study how its symmetries affect the connection matrices associated with its general solution. We reduce the obtained exact general relation for the matrices to its limiting case introducing a concept of the effective Stokes constant. We also propose a concept of an effective Stokes diagram which can be a useful tool for analyzing difficult equations. We show that effective Stokes domains which can be overlapped by a symmetry transformation are associated with the same effective Stokes constant and can be described by the same analytical function. Basing on the derived symmetry relations, we propose a way to write functional equations for the effective Stokes constants. Finally, we provide a generalization of the derived symmetry relations for an arbitrary order linear system of the ordinary linear differential equations. This work also contains an example of usage of the presented ideas in a case of a real physical problem. To access the HTML version of the paper & discuss it with the author, visit https://enabla.com/pub/1108.

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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