Prolongation analysis of the cylindrical Korteweg-de Vries equation

Abstract
The cylindrical Korteweg-de Vries equation is studied systematically within the prolongation scheme of Estabrook and Wahlquist. A non-Abelian Lie algebra associated to the equation is exploited, without using representations, to derive a set of Bäcklund transformations and a nonlinear superposition formula. These are used to provide some examples of explicit solutions.