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Nonlinear wave equation in an inhomogeneous medium from non-standard singular Lagrangians functional with two occurrences of integrals
Journal of Nonlinear, Complex and Data Science ( IF 1.4 ) Pub Date : 2020-11-18 , DOI: 10.1515/ijnsns-2019-0162
Rami Ahmad El-Nabulsi 1
Affiliation  

Abstract In this communication, we show that a family of partial differential equations such as the linear and nonlinear wave equations propagating in an inhomogeneous medium may be derived if the action functional is replaced by a new functional characterized by two occurrences of integrals where the integrands are non-standard singular Lagrangians. Several features are illustrated accordingly.

中文翻译:

非标准奇异拉格朗日函数在非均匀介质中的非线性波动方程,具有两次积分

摘要 在本次交流中,我们表明,如果作用泛函被一个以两次出现积分为特征的新泛函取代,其中被积函数为非标准奇异拉格朗日函数。相应地说明了几个特征。
更新日期:2020-11-18
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