Symmetries for initial value problems

Authors

Joanna Goard, University of WollongongFollow
Samar Al-Nassar, University of WollongongFollow

RIS ID

84635

Publication Details

Goard, J. & Al-Nassar, S. (2014). Symmetries for initial value problems. Applied Mathematics Letters, 28 56-59.

Abstract

In this letter we give a less restrictive condition compared to that given by Zhang and Chen (2010), for first order initial conditions to be recoverable with a particular classical or nonclassical symmetry generator. Examples are provided for the generalised Kuramoto-Sivashinsky equation and a nonlinear diffusion equation with a sink term.