An efficient finite difference scheme for the 2D sine-Gordon equation


Authors

Xiaorong Kang - School of Science, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China. Wenqiang Feng - Department of Mathematics, University of Tennessee, Knoxville, Tennessee 37996, USA. Kelong Cheng - School of Science, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China. Chunxiang Guo - School of Business, Sichuan University, Chengdu, Sichuan 610064, China.


Abstract

We present an efficient second-order finite difference scheme for solving the 2D sine-Gordon equation, which can inherit the discrete energy conservation for the undamped model theoretically. Due to the semi-implicit treatment for the nonlinear term, it leads to a sequence of nonlinear coupled equations. We use a linear iteration algorithm, which can solve them efficiently, and the contraction mapping property is also proven. Based on truncation errors of the numerical scheme, the convergence analysis in the discrete \(l^2\)-norm is investigated in detail. Moreover, we carry out various numerical simulations, such as verifications of the second order accuracy, tests of energy conservation and circular ring solitons, to demonstrate the efficiency and the robustness of the proposed scheme.


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ISRP Style

Xiaorong Kang, Wenqiang Feng, Kelong Cheng, Chunxiang Guo, An efficient finite difference scheme for the 2D sine-Gordon equation, Journal of Nonlinear Sciences and Applications, 10 (2017), no. 6, 2998--3012

AMA Style

Kang Xiaorong, Feng Wenqiang, Cheng Kelong, Guo Chunxiang, An efficient finite difference scheme for the 2D sine-Gordon equation. J. Nonlinear Sci. Appl. (2017); 10(6):2998--3012

Chicago/Turabian Style

Kang, Xiaorong, Feng, Wenqiang, Cheng, Kelong, Guo, Chunxiang. "An efficient finite difference scheme for the 2D sine-Gordon equation." Journal of Nonlinear Sciences and Applications, 10, no. 6 (2017): 2998--3012


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