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Application of the dual reciprocity boundary integral equation technique to solve the nonlinear Klein-Gordon equation

机译:对偶边界积分方程技术在求解非线性Klein-Gordon方程中的应用

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This paper aims to obtain approximate solutions of the Nonlinear Klein-Gordon (NLKG) equation by employing the Boundary Integral Equation (BIE) method and the Dual Reciprocity Boundary Element Method (DRBEM). This method is improved by using a predictor-corrector scheme to the nonlinearity which appears in the problem. We employ the time stepping scheme to approximate the time derivative, and the Linear Radial Basis Functions (LRBFs), are used in the Dual Reciprocity (DR) technique. To confirm the accuracy of the new approach, the numerical results of a Double-Soliton and a problem with inhomogeneous terms are compared with analytical solutions and for the examples possessing single and periodic waves, two conserved quantities associated to the (NLKG) equation, the energy and the momentum are investigated.
机译:本文旨在通过使用边界积分方程(BIE)方法和对偶互易边界元方法(DRBEM)获得非线性Klein-Gordon(NLKG)方程的近似解。通过对问题中出现的非线性使用预测器校正器方案来改进此方法。我们采用时间步进方案来近似时间导数,并且在双向互易(DR)技术中使用了线性径向基函数(LRBF)。为了确认新方法的准确性,将双孤子的数值结果和不均匀项的问题与解析解进行了比较,对于具有单波和周期波,与(NLKG)方程相关联的两个守恒量,研究能量和动量。

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