The monotonic property and stability of solutions of fractional differential equations Original Research Article

In this paper we improve on the monotone property of Lemma 1.7.3 in Lakshmikantham et al. (2009) [5] for the case g(t,u)=λug(t,u)=λu with a nonnegative real number λλ. We also investigate the Mittag-Leffler stability of solutions of fractional differential equations by using the fractional comparison principle.