• Barotropic FRW cosmologies with a Dirac-like parameter 

      Rosu Barbus, Haret-Codratian; López Sandoval, Román (2004)
      "Using the known connection between Schroedinger-like equations and Dirac-like equations in the supersymmetric context, we discuss an extension of FRW barotropic cosmologies in which a Dirac mass-like parameter is introduced. ...
    • Classical harmonic oscillator with Dirac-like parameters and possible applications 

      Rosu Barbus, Haret-Codratian; Cornejo Pérez, Octavio; López Sandoval, Román (2004)
      "We obtain a class of parametric oscillation modes that we call K-modes with damping and absorption that are connected to the classical harmonic oscillator modes through the “supersymmetric” one-dimensional matrix procedure ...