Analysis and Optimal Control of <i>φ</i>-Hilfer Fractional Semilinear Equations Involving Nonlocal Impulsive Conditions

Abstract

The goal of this paper is to consider a new class of φ-Hilfer fractional differential equations with impulses and nonlocal conditions. By using fractional calculus, semigroup theory, and with the help of the fixed point theorem, the existence and uniqueness of mild solutions are obtained for the proposed fractional system. Symmetrically, we discuss the existence of optimal controls for the φ-Hilfer fractional control system. Our main results are well supported by an illustrative example.

Keywords

• <i>φ</i>-Hilfer fractional system with impulses
• semigroup theory
• nonlocal conditions
• optimal controls