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Updated: Sep 21, 2025

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Approximate Analytical and Numeric Solutions to a Forced Damped Gardner Equation
Alvaro H Salas1, S A El-Tantawy2,3, Lorenzo J Martinez H4
1Department of Mathematics and Statistics, Universidad Nacional de Colombia, Bogotá, FIZMAKO Research Group, Colombia Sede Manizales.
Abstract:
In this paper, some exact traveling wave solutions to the integrable Gardner equation are reported. The ansatz method is devoted for deriving some exact solutions in terms of Jacobi and Weierstrass elliptic functions. The obtained analytic solutions recover the solitary waves, shock waves, and cnoidal waves. Also, the relation between the Jacobi and Weierstrass elliptic functions is obtained. In the second part of this work, we derive some approximate analytic and numeric solutions to the nonintegrable forced damped Gardner equation. For the approximate analytic solutions, the ansatz method is considered. With respect to the numerical solutions, the evolution equation is solved using both the finite different method (FDM) and cubic B-splines method. A comparison between different approximations is reported.
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