We discuss the Simple Equations Method for obtaining exact solutions of non-linear differential equations. We demonstrate the methodology on the basis of two examples. In the first example we show the effect of a transformation on an equation possessing nonpolynomial nonlinearity. The equation is transformed to an equations with a polynomial nonlinearity which can be solved by Jacobi elliptic functions. In the second example we obtain a solution of an equation which possesses polynomial nonlinearity.

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Simple Equations Method for Obtaining Exact Solutions of Nonlinear Differential Equations with Polynomial or Nonpolynomial Nonlinearity

  • Zlatinka I. Dimitrova,
  • Nikolay K. Vitanov

摘要

We discuss the Simple Equations Method for obtaining exact solutions of non-linear differential equations. We demonstrate the methodology on the basis of two examples. In the first example we show the effect of a transformation on an equation possessing nonpolynomial nonlinearity. The equation is transformed to an equations with a polynomial nonlinearity which can be solved by Jacobi elliptic functions. In the second example we obtain a solution of an equation which possesses polynomial nonlinearity.