“…Recently, Cheng [8] has pioneered an algebraic state space representation (ASSR) method to study Boolean networks [9], [24], [26], [52], [58], probabilistic Boolean networks [10], [14], [31], [36] and evolutionary games [11]. Using this effective mathematical tool, several fundamental issues have been properly solved for Boolean networks and probabilistic Boolean networks, including state estimation [3], controllability and observability [13], stability and stabilization [27], [30], optimal control [18], [46], and so on. Since then, the study of controllability has made rapid progress and achieved fruitful results.…”