• Second order generalized linear systems. A geometric approach 

      Clotet Juan, Josep; García Planas, María Isabel (2004)
      Article
      Accés obert
      Let (E;A1;A2;B) be a quadruple of matrices representing a two-order generalized time-invariant linear system, E¨x = A1 ˙ x + A2x + Bu. We study the controllability character under an algebraic point of view.