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Transforming ODEs and PDEs from Radical Coefficients to Rational Coefficients
Mediterranean Journal of Mathematics ( IF 1.1 ) Pub Date : 2021-03-30 , DOI: 10.1007/s00009-021-01703-x
Jorge Caravantes , J. Rafael Sendra , David Sevilla , Carlos Villarino

We present an algorithm that transforms, if possible, a given ODE or PDE with radical function coefficients into one with rational coefficients by means of a rational change of variables so that solutions correspond one-to-one. Our method also applies to systems of linear ODEs. It is based on previous work on reparametrization of radical algebraic varieties.



中文翻译:

将ODE和PDE从径向系数转换为有理系数

我们提出了一种算法,该算法在可能的情况下,通过变量的有理变化将给定的带基函数系数的ODE或PDE转换为带有理系数的ODE或PDE,从而使解一对一对应。我们的方法也适用于线性ODE系统。它基于先前关于根代数变种的重新参数化的工作。

更新日期:2021-03-30
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