Fokker-Planck Equation

Fokker-Planck Equation
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DOI:
10.1007/978-3-642-61544-3_4
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发表时间:
1984
期刊:
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影响因子:
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通讯作者:
H. Risken
H. Risken
中科院分区:
其他
文献类型:
--
作者:
H. Risken

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如《宗派》中所示。 3.1, 2 我们可以立即获得线性 Langevin 方程 (3.1, 31) 描述的过程的期望值。对于非线性 Langevin 方程 (3.67, 110) 期望值更难获得,因此这里我们首先尝试推导分布函数的方程。正如引言中已经提到的,描述布朗运动的分布函数的微分方程首先由 Fokker[1.1] 和 Planck[1.2] 导出:现在存在许多关于 Fokker-Planck 方程的评论文章和书籍 [1.5 – 15]。
As shown in Sects. 3.1, 2 we can immediately obtain expectation values for processes described by the linear Langevin equations (3.1, 31). For nonlinear Langevin equations (3.67, 110) expectation values are much more difficult to obtain, so here we first try to derive an equation for the distribution function. As mentioned already in the introduction, a differential equation for the distribution function describing Brownian motion was first derived byFokker[1.1] andPlanck[1.2]: many review articles and books on the Fokker-Planck equation now exist [1.5 – 15].