Polygons of differential equations for finding exact solutions
- 31 August 2007
- journal article
- Published by Elsevier BV in Chaos, Solitons, and Fractals
- Vol. 33 (5), 1480-1496
- https://doi.org/10.1016/j.chaos.2006.02.012
Abstract
A method for finding exact solutions of nonlinear differential equations is presented. Our method is based on the application of polygons corresponding to nonlinear differential equations. It allows one to express exact solutions of the equation studied through solutions of another equation using properties of the basic equation itself. The ideas of power geometry are used and developed. Our approach has a pictorial interpretation, which is illustrative and effective. The method can be also applied for finding transformations between solutions of differential equations. To demonstrate the method application exact solutions of several equations are found. These equations are: the Korteveg–de Vries–Burgers equation, the generalized Kuramoto–Sivashinsky equation, the fourth-order nonlinear evolution equation, the fifth-order Korteveg–de Vries equation, the fifth-order modified Korteveg–de Vries equation and the sixth-order nonlinear evolution equation describing turbulent processes. Some new exact solutions of nonlinear evolution equations are given.Keywords
This publication has 35 references indexed in Scilit:
- Painlevé analysis and special solutions of two families of reaction—diffusion equationsPhysics Letters A, 1991
- On types of nonlinear nonintegrable equations with exact solutionsPhysics Letters A, 1991
- Exact solutions of the non-linear wave equations arising in mechanicsJournal of Applied Mathematics and Mechanics, 1990
- Exact solutions of the generalized Kuramoto-Sivashinsky equationPhysics Letters A, 1990
- Painleve analysis and Backlund transformation in the Kuramoto-Sivashinsky equationJournal of Physics A: General Physics, 1989
- Exact soliton solutions of the generalized evolution equation of wave dynamicsJournal of Applied Mathematics and Mechanics, 1988
- The Painlevé property for partial differential equationsJournal of Mathematical Physics, 1983
- Nonlinear-Evolution Equations of Physical SignificancePhysical Review Letters, 1973
- Exact Solution of the Korteweg—de Vries Equation for Multiple Collisions of SolitonsPhysical Review Letters, 1971
- Method for Solving the Korteweg-deVries EquationPhysical Review Letters, 1967