Inflaton field fluctuations from gauge-invariant metric fluctuations   during inflation
  The evolution of the inflaton field fluctuations from gauge-invariant metric fluctuations is discused. In particular, the case of a symmetric $\phi_c$-exponential potential is analyzed. 
Mariano Anabitarte (Mar del Plata University) and Mauricio Bellini   (Mar del Plata University and CONICET)