... hopefullysmall control corrections u(t), resulting in the control vectorU(t)=Unom(t)+u(t) .If indeed the errors x(t) and the control corrections can be kept small, thestabilizing controller ... the players are restricted to open-loop controls u(t)andv(t)orare allowed to use state-feedback controls u(x(t),t)andv(x(t),t).3) If there are nontrivial control constraints, the admissible sets ... state feedback control rather than as an open-loop control? Problem 1: Time-optimal, friction-less, horizontal motion of a mass pointState variables:x1= positionx2=velocity control variable:u...