Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Observations on the basic (G′/G)-expansion method for finding solutions to nonlinear evolution equations

Parkes, E.J. (2010) Observations on the basic (G′/G)-expansion method for finding solutions to nonlinear evolution equations. Applied Mathematics and Computation, 217. pp. 1759-1763. ISSN 0096-3003

[img]
Preview
PDF (GdG.pdf)
GdG.pdf

Download (92kB) | Preview

Abstract

The extended tanh-function expansion method for finding solutions to nonlinear evolution equations delivers solutions in a straightforward manner and in a neat and helpful form. On the other hand, the more recent but less efficient (G′/G)-expansion method delivers solutions in a rather cumbersome form. It is shown that these solutions are merely disguised forms of the solutions given by the earlier method so that the two methods are entirely equivalent. An unfortunate consequence of this observation is that, in many papers in which the (G′/G)-expansion method has been used, claims that 'new' solutions have been derived are often erroneous; the so-called 'new' solutions are merely disguised versions of previously known solutions.