“…Fractional differential equations on scalar functions, including the existence, uniqueness and stability, and the analytic and numeric methods of solutions, were studied by many scholars [3-9, 13, 15, 17, 22-27]. In particular, new numerical schemes were designed [9,23,24,28], and a Lie symmetry analysis was given and the conservation laws for fractional evolution equations were systematically investigated [29][30][31][32]. The solutions of many fractional differential equations involve a class of important special functions-Mittag-Leffler functions (AMS 2000 Mathematics Subject Classification 33E12).…”