JOURNAL OF INDUSTRIAL AND MANAGEMENT OPTIMIZATION, 2021 (Journal Indexed in SCI)
In this paper, we consider an optimal control problem in which a dynamical system is controlled by a nonlinear Caputo fractional state equa-tion. The problem is investigated in the case when the Pontryagin maximum principle degenerates, that is, it is satisfied trivially. Then the second order optimality conditions are derived for the considered problem.