A general parametric model for the dynamic dark energy
  In the present work we suggest new and more generalized parameterizations for
the Equation of State, EoS, of dark energy, maintaining the basic structure of
two-parameters CPL-model, but covering both the past and the future of the
cosmic history, without divergences and consistently with the current
observational data. We propose two generalizations, starting from the extended
MZp-model by Ma and Zhang, 2011, the $\xi$MZp-model and the DFp-model. The
potential advantages of using these new formulations is their extended range of
validity, mainly in the future, to determine possible future scenarios of the
cosmic evolution.
