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首页> 外文期刊>Physics of plasmas >Painleve analysis, auto-Backlund transformation, and new exact solutions for Schamel and Schamel-Korteweg-de Vries-Burger equations in dust ion-acoustic waves plasma
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Painleve analysis, auto-Backlund transformation, and new exact solutions for Schamel and Schamel-Korteweg-de Vries-Burger equations in dust ion-acoustic waves plasma

机译:尘埃离子声波等离子体中Schamel和Schamel-Korteweg-de Vries-Burger方程的Painleve分析,自动Backlund变换和新的精确解

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摘要

A theoretical investigation of dust-acoustic solitary waves in one-dimensional, collisionless, and unmagnetized dusty plasma consisting of ion fluid, trapped as well as free electrons, and charge fluctuating immobile dust particles is considered. The nonlinear dynamics of dust ion-acoustic waves, whose phase speed is much smaller (larger) than the electron (ion) thermal speed, propagating in such a dusty plasma system is investigated. The reductive perturbation method is employed to reduce the basic set of fluid equations to the Schamel and Schamel-Korteweg-de Vries-Burger (S-KdVB) equations. The Schamel and Schamel-KdVB equations are shown to be non-integrable using Painleve analysis. The Backlund transformations and some new exact solutions are formally derived. Finally, we discussed the results in this paper. (C) 2014 AIP Publishing LLC.
机译:对一维,无碰撞且未磁化的尘埃等离子体中的尘埃声孤立波进行了理论研究,该等离子体由离子流体,捕获的电子以及自由电子以及电荷波动的固定尘埃粒子组成。研究了在这种多尘等离子体系统中传播的尘埃离子声波的非线性动力学,该声波的相速度比电子(离子)热速度小(大)。还原摄动法用于将流体方程组的基本集合简化为Schamel方程和Schamel-Korteweg-de Vries-Burger(S-KdVB)方程。使用Painleve分析表明,Schamel和Schamel-KdVB方程不可积分。正式导出了Backlund变换和一些新的精确解。最后,我们讨论了本文的结果。 (C)2014 AIP Publishing LLC。

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