Variable coefficient third order Korteweg-de Vries type of equations

Abstract

It is shown that the integrable subclasses of the equations q, t=f(x,t)q,3 + H(x,t,q,q,1) are the same as the integrable subclasses of the equations q,t=q,3 + F(q,q,1). © 1995 American Institute of Physics.