Abstract
In the present article, we construct the traveling wave solutions of the (1+1)‐dimensional coupled Hirota‐Satsuma‐KdV equations and the (1+1)‐dimensional variant coupled Boussinesq system of equations by using an improved (G′G)‐expansion method, where G satisfies the second order linear ordinary differential equation. As a result, hyperbolic, trigonometric and rational function solutions with parameters are obtained. It is shown that the proposed method is direct, effective and can be used for many other nonlinear evolution equations in mathematical physics.
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