@Article{pakinsight, AUTHOR = {}, TITLE = {Multi-Order Fractional Mathieu Equation with External Multi-Periodic Excitation}, JOURNAL = {International Journal of Mathematical Research}, VOLUME = {5}, YEAR = {2016}, NUMBER = {2}, PAGES = {166-178}, URL = {http://www.pakinsight.com/archive/24/02-2016/2}, ISSN = {2306-2223}, ABSTRACT = {This paper presents an investigation of the behavior of the multi-order fractional differential equation (MFDE). We derive expressions for the transition curves separating regions of stability from instability for the MFDE generally and the particular case K=2. Employing the harmonic balance technique, we obtained approximate expressions for the n=1 and n=2   transition curves of the MFDE and particularly for the case k=2. We also obtained an approximate analytical solution to the multi-order fractionally damped and forced Duffing-Mathieu equation as well as some special cases computationally using the Homotopy Perturbation Method (HPM).}, DOI = {10.18488/journal.24/2016.5.2/24.2.166.178} }