“…Stabilization is one of the most important objectives in control theory. There are two important subjects on stabilization for linear control systems: The first one is to find sufficient conditions/equivalent conditions on stabilizability, such as resolvent conditions (see, for instance, [7,8,13,16]) and weak observability inequalities (see [14,21,26]). The second one is to design feedback laws (see, for instance, [6,10,11,12,18,19,23,24,27]).…”