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首页> 外文期刊>Differential equations: A translation of differensial'nye uraveniya >Initial-Boundary Value Problem for a Nonlinear Beam Vibration Equation
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Initial-Boundary Value Problem for a Nonlinear Beam Vibration Equation

机译:非线性梁振动方程的初始边值问题

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摘要

We consider an initial-boundary value problem for the beam vibration equation, which is a fourth-order nonlinear equation with two independent variables. It is shown that under certain conditions on the initial data this problem can be reduced to the Cauchy problem for a countable system of quasilinear ordinary differential equations. Using the method of energy inequalities, we prove that this Cauchy problem has a solution. Based on this, we establish the existence of a local solution of the original initial-boundary value problem and construct it in closed form. A theorem on the uniqueness of a global solution is proved.
机译:我们考虑光束振动方程的初始边界值问题,这是具有两个独立变量的四阶非线性方程。 结果表明,在初始数据的某些条件下,该问题可以减少到Quasilinear常微分方程的可数系统的Cauchy问题。 使用能量不等式的方法,我们证明了这种Cauchy问题有解决方案。 基于此,我们建立了原始初始边界值问题的本地解决方案,并以封闭形式构建。 证明了全球解决方案唯一性的定理。

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