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arXiv 0808.0968nlin.SI
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关于非线性常微分方程的完全可积性和线性化--第IV部分:耦合二阶方程

On the complete integrability and linearization of nonlinear ordinary differential equations - Part IV: Coupled second order equations

V. K. Chandrasekar, M. Senthilvelan, M. Lakshmanan

摘要:

二阶耦合非线性微分方程在动力学中具有重要意义。在非线性常微分方程的可积性和线性化研究的这一部分中,我们着重研究了利用推广的Prelle-Singer方法求两个耦合的二阶非线性常微分方程的通解的方法。我们描述了一个程序,以获得积分因子和所需数量的运动积分,使一般的解决方案如下直接从这些积分。我们的方法处理各向同性和非各向同性的情况下,在一个系统的方式。除此之外,我们还介绍了一种将耦合二阶非线性常微分方程转化为非耦合常微分方程的新方法。我们用潜在的重要例子来说明这个理论。

英文摘要:

Coupled second order nonlinear differential equations are of fundamental importance in dynamics. In this part of our study on the integrability and linearization of nonlinear ordinary differential equations we focus our attention on the method of deriving general solution of two coupled second order nonlinear ordinary differential equations through the extended Prelle-Singer procedure. We describe a procedure to obtain integrating factors and required number of integrals of motion so that the general solution follows straightforwardly from these integrals. Our method tackles both isotropic and non-isotropic cases in a systematic way. In addition to the above, we introduce a new method of transforming coupled second order nonlinear ODEs into uncoupled ones. We illustrate the theory with potentially important examples.

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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