Abstract.
In this paper, we construct a family of wave solutions to the doubly dispersive equation, such as topological, non-topological, singular, compound topological-non-topological bell-type and compound singular, soliton-like, singular periodic wave and exponential function solutions. These analytical solutions are obtained by using the extended sinh-Gordon equation expansion method and the modified \(\exp(-\varphi(\zeta))\)-expansion function method. The doubly dispersive equation is an important nonlinear physical model describing the nonlinear wave propagation in the elastic inhomogeneous Murnaghan’s rod. Under a suitable choice of parameters, the 2D, 3D and contour graphics to the reported results are also plotted.
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Cattani, C., Sulaiman, T.A., Baskonus, H.M. et al. Solitons in an inhomogeneous Murnaghan’s rod. Eur. Phys. J. Plus 133, 228 (2018). https://doi.org/10.1140/epjp/i2018-12085-y
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DOI: https://doi.org/10.1140/epjp/i2018-12085-y