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arXiv 0807.4349math-phmath.MP
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Riccati微分方程与一类扩散型方程

The Riccati Differential Equation and a Diffusion-Type Equation

Erwin Suazo, Sergei K. Suslov, Jose M. Vega-Guzman

摘要:

我们构造了整条实直线上变系数扩散型方程柯西初值问题的显式解。相应的格林函数(热核)是以初等函数和某些涉及特征函数的积分的形式给出的,这些特征函数可以作为系数随时间变化的二阶线性微分方程的解析解或数值解来求出。一些特殊的和限制的情况下进行了概述。相应的非齐次方程的解决方案也被发现。

英文摘要:

We construct an explicit solution of the Cauchy initial value problem for certain diffusion-type equations with variable coefficients on the entire real line. The corresponding Green function (heat kernel) is given in terms of elementary functions and certain integrals involving a characteristic function, which should be found as an analytic or numerical solution of the second order linear differential equation with time-dependent coefficients. Some special and limiting cases are outlined. Solution of the corresponding non-homogeneous equation is also found.

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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