“…Nowadays, the applications of fractional equations in mathematics, engineering and technology, biology, social science and sociology cover various topics such as modeling of nonlinear earthquake oscillations, color vibrations, fluid dynamics, dynamic economics, control theory, signal processing, and so on [1,2]. Therefore, many techniques have been developed for solving fractional differential equations (see for example [3][4][5][6][7][8][9] and references therein).…”