“…In Reference
42, the authors investigate the numerical approximation of solutions to a set of abstract parabolic time optimal control problems using an unbounded control operator. In Reference
17, the authors analyzed the non‐instantaneous impulsive fractional stochastic evolution equations with optimal control problems in infinite‐dimensional spaces by referring to fixed point theorem, the Laplace transform, and Wiener process. Optimal controls for fractional differential systems of order
utilizing the nonlocal conditions,
‐order sine and cosine family, mild solutions, continuous dependence, different fixed point techniques investigated in References
43–45.…”