Balachandran, K.Govindaraj, V.Rivero, MargaritaMachado, J. A. TenreiroTrujillo, Juan J.2014-01-232014-01-232013http://hdl.handle.net/10400.22/3448We study the observability of linear and nonlinear fractional differential systems of order 0 < α < 1 by using the Mittag-Leffler matrix function and the application of Banach’s contraction mapping theorem. Several examples illustrate the concepts.engjournal article10.1155/2013/346041