• Orbits of controllable and observable systems 

      Clotet Juan, Josep; García Planas, María Isabel (1999)
      Article
      Accés obert
      Let a time-invariant linear system $\left .\aligned \dot x(t)&=Ax(t)+Bu(t)\\y(t)&=Cx(t)\endaligned \right \}$ corresponding to a realization of a prescribed transfer function matrix can be represented by triples of ...
    • Switched linear systems. Geometric approach 

      Magret Planas, Maria dels Dolors; Montoro López, María Eulalia (2011-10)
      Report de recerca
      Accés obert
      We consider equivalence relation between switched linear systems and compute the dimension of equivalence classes, after proving they can be obtained as the orbits of the action of a Lie group on the differentiable manifold ...