New exact solutions for two nonlinear equations

作者:Wang Quandi*; Tang Minying
来源:Physics Letters, Section A: General, Atomic and Solid State Physics , 2008, 372(17): 2995-3000.
DOI:10.1016/j.physleta.2008.01.012

摘要

In this Letter, we investigate two nonlinear equations given by u(t) - u(xxt) + 3u(2)u(x) = 2u(x)u(xx) + uu(xxx) and u(t) - u(xxt) + 4u(2)u(x) = 3u(x)u(xx) + uu(xxx). Through some special phase orbits we obtain four new exact solutions for each equation above. Some previous results are extended.