(1) Department of Mathematics, Banaras Hindu University, Varanasi, India;(2) Dept. of Mathematics, The U.P.S.C.C.I. College, Dalla, Mirzapur, U.P., India;(3) Dept. of Mathematics and Statistics, A.P.S. University, Rewa, M.P., India
Abstract:
We show that the solutions obtained by Lorenz-Petzold (1982) are special cases of the solutions given by us (1985b). We also show that the observations made by Lorenz-Petzold (1985a) about the solution given by Roy and Narain (1985a) are not correct.