(1) Department of Applied Mathematics, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield, S3 7RH, U.K.;(2) School of Mathematics and Statistics, University of St. Andrews, St. Andrews, Fife, KY16 9SS, U.K.
Abstract:
In our comment we argue that the results obtained by Cally (2006) are based on a wrong solution of the initial value problem.