Self-equivalence 3rd order ODEs by time-fixed transformations
arXiv:0706.0255
Abstract
Let y''' = f(x, y, y', y'') be a 3rd order ODE. By Cartan equivalence method, we will study the local equivalence problem under the transformations group of time-fixed coordinates.
arXiv comment9 pages, accepted by "Electronic Journal Applied Sciences (http://www.mathem.pub.ro/apps)"