K. SAYEVAND - Faculty of Basic Sciences, Department of Mathematics, University of Malayer, Malayer, Iran
F. MIRZAEE - Faculty of Basic Sciences, Department of Mathematics, University of Malayer, Malayer, Iran

In this paper the Bagley-Torvik equation as a prototype fractional differential equation with two derivatives is investigated by means of homotopy perturbation method. The results reveal that the present method is very effective and accurate.

One metric space, Baire category theorem, Banach Steinhaus theorem