Order Reduction and μ-Conservation Law for the Non-Isospectral KdV Type Equation a with Variable-Coefficients

Abstract

The goal of this paper is to calculate of order reduction of the KdV type<br />equation and the non-isospectral KdV type equation using the μ-symmetry<br />method. Moreover we obtain μ-conservation law of the non-isospectral KdV<br />type equation using the variational problem method.