“…DDS arise in the modeling process of a variety of systems, including impulsive dynamical systems [2]- [5], switched systems [4], [6]- [8], dynamical systems endowed with logic elements [9], [10], discrete-event systems [1], [9], [10], systems with unilateral constraints [11], and motion control systems [12]. Many of these, but not all, constitute special cases of HDS [3], [6], [9], [10], [12]- [16].…”