Abstract
Under investigation in this paper are the Zhiber–Shabat and (2+1)-dimensional Gardner equations in quantum fields, fluids and plasmas. Via the Hirota method and symbolic computation, the Bell-polynomial approach is performed to directly bilinearize those equations. For the Zhiber–Shabat equation, based on the bilinear form with an auxiliary variable, the bell-shaped soliton, upside-down bell-shaped soliton and breather-like solutions are obtained. Figures are plotted to illustrate the elastic interactions between two upside-down bell-shaped solitons and the interaction between the breather-like. As to the (2+1)-dimensional Gardner equation, bilinear form, Bäcklund transformation, one- and two-shock wave solutions are derived. Amplitude-compression and amplification interactions are investigated analytically and graphically.
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This work has been supported by the Fundamental Research Funds for the Central Universities of China under Grant No. 2011BUPTYB02, and by the Specialized Research Fund for the Doctoral Program of Higher Education (No. 200800130006), Chinese Ministry of Education.
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Wang, YF., Tian, B., Wang, P. et al. Bell-polynomial approach and soliton solutions for the Zhiber–Shabat equation and (2+1)-dimensional Gardner equation with symbolic computation. Nonlinear Dyn 69, 2031–2040 (2012). https://doi.org/10.1007/s11071-012-0405-3
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DOI: https://doi.org/10.1007/s11071-012-0405-3