Exact solutions of some physical models using the (e??oa€2/e??o)-expansion method

摘要

The (e??oa€2/e??o)-expansion method and its simpli???ed version are used to obtain generalized travelling wave solutions of ???ve nonlinear evolution equations (NLEEs) of physical importance, viz. the (2+1)-dimensional Maccari system, the Pochhammera€“Chree equation, the Newella€“Whitehead equation, the Fitzhugha€“Nagumo equation and the Burgera€“Fisher equation. A variety of special solutions like periodic, kinka€“antikink solitons, bell-type solitons etc. can easily be derived from the general results. Three-dimensional pro???le plots of some of the solutions are also drawn.