Abstract.
The KdV equation plays an important role in describing motions of long waves in shallow water under gravity, one-dimensional nonlinear lattice, fluid mechanics, quantum mechanics, plasma physics, nonlinear optics and other areas. The KdV equation is a well-known model for the description of nonlinear long internal waves in a fluid stratified by both density and current. The aim of this paper is to present solitary wave solutions of the fifth-order KdV equations with time-dependent coefficients. The Kudryashov method is applied to solve the governing equations and then exact 1-soliton solutions are obtained. It is shown that this method provides us with a powerful mathematical tool for solving high-order nonlinear partial differential equations with time-dependent coefficients in mathematical physics.
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Eslami, M., Mirzazadeh, M. Exact solutions for fifth-order KdV-type equations with time-dependent coefficients using the Kudryashov method. Eur. Phys. J. Plus 129, 192 (2014). https://doi.org/10.1140/epjp/i2014-14192-1
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DOI: https://doi.org/10.1140/epjp/i2014-14192-1