Abstract
An effective and simple method to solve nonlinear evolution partial differential equations is the self-similarity transformation, in which one utilizes solutions of the known equation to find solutions of the unknown. In this paper, we employ an improved similarity transformation to transform the \((2+1)\)-dimensional (D) sine-Gordon (SG) equation into the \((1+1)\)-D SG equation and obtain non-rational solutions of the \((2+1)\)-D SG equation by utilizing the known solutions of the \((1+1)\)-D SG equation. Based on the solutions obtained, and with the help of special choices of the involved solution parameters, several localized structures of the \((2+1)\)-D SG model are analyzed on a finite background, such as the embedded hourglass, split silo, dumbbell, and pie solitons. Their spatiotemporal profiles are displayed, and their properties are discussed.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China under Grant Nos. 61775150 and 61701121 and by Guangdong Basic and Applied Basic Research Foundation (2017A030313346 and 2019A1515010749), China, and by Key projects of basic research and applied basic research in universities of Guangdong Province, China, under Grant No. 2018GKZDXM001. The work at the Texas A&M University at Qatar was supported by the NPRP 11S-1126-170033 project with the Qatar National Research Fund (a member of the Qatar Foundation). MRB acknowledges support from the Al Sraiya Holding Group.
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Zhong, W., Zhong, WP., Belić, M.R. et al. Embedded solitons in the \((2+1)\)-dimensional sine-Gordon equation. Nonlinear Dyn 100, 1519–1526 (2020). https://doi.org/10.1007/s11071-020-05561-2
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DOI: https://doi.org/10.1007/s11071-020-05561-2