Existence and Ulam stability results of a coupled system for terminal value problems involving ψ-Hilfer fractional operator

Abstract The work reported in this paper deals with the study of a coupled system for fractional terminal value problems involving ψ -Hilfer fractional derivative. The existence and uniqueness theorems to the problem at hand are investigated. Besides, the stability analysis in the Ulam–Hyers sense of a given system is studied. Our discussion is based upon known fixed point theorems of Banach and Krasnoselskii. Examples are also provided to demonstrate the applicability of our results.