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arXiv 1606.02640math.AP
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具有拟线性守恒律的Ginzburg-Landau方程耦合系统

On a coupled system of a Ginzburg-Landau equation with a quasilinear conservation law

João-Paulo Dias, Filipe Oliveira, Hugo Tavares

摘要:

本文研究了具有准线性守恒律$$ \left\{\begin{array}{rlll} e^{-iθ}u_t&=&u_{xx}-|u|^2u-αg(v)u& v_t+(f(v))_x&=&α(g'(v)|u|^2)_x& \end{array}\right. \qquad x\in\mathbb{R},\, t \geq 0, $$的复Ginzburg-Landau方程的耦合系统的Cauchy问题,该方程可以描述激光束与流体流之间的相互作用(参见[Aranson,Kramer,Rev.Med.Phys.74(2002)])。我们证明了相关Cauchy问题在时间上局部强解的存在性,并对某类流函数证明了整体弱解的存在性.此外,我们证明了存在的驻波形式$(u(t,x),v(t,x))=(U(x),V(x))$在几种情况下。

英文摘要:

We study the Cauchy problem for a coupled system of a complex Ginzburg-Landau equation with a quasilinear conservation law $$ \left\{\begin{array}{rlll} e^{-iθ}u_t&=&u_{xx}-|u|^2u-αg(v)u& v_t+(f(v))_x&=&α(g'(v)|u|^2)_x& \end{array}\right. \qquad x\in\mathbb{R},\, t \geq 0, $$ which can describe the interaction between a laser beam and a fluid flow (see [Aranson, Kramer, Rev. Med. Phys. 74 (2002)]). We prove the existence of a local in time strong solution for the associated Cauchy problem and, for a certain class of flux functions, the existence of global weak solutions. Furthermore we prove the existence of standing waves of the form $(u(t,x),v(t,x))=(U(x),V(x))$ in several cases.

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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