Quintessence Scalar Field: A Dynamical Systems Study
  The present work deals with a dynamical systems study of quintessence potentials leading to the present accelerated expansion of the universe. The principal interest is to check for late time attractors which give an accelerated expansion for the universe. Two examples are worked out, namely the exponential and the power-law potentials. 
Nandan Roy and Narayan Banerjee
gr-qc