Approximate controllability of semi-linear heat equation with Non-instantaneous impulses, memory and delay

Qualitative properties for the 1 − D impulsive wave equation: controllability and observability

“…Unlike the interior controllability for impulsive systems that have been extensively studied in the literature, see for instance [8,4,9,3,11] and the references therein, the problem of controllability with impulse controls has attracted less attention and not as many works are available in this area. We mention A. Khapalov [10] who proved the exact controllability of a class of second-order hyperbolic boundary problems with impulse controls using the Huygens' principle.…”