Cyclic Universe with an Inflationary Phase from a Cosmological Model   with Real Gas Quintessence
  Phase-plane stability analysis of a dynamical system describing the Universe as a two-fraction fluid containing baryonic dust and real virial gas quintessence is presented. Existence of a stable periodic solution experiencing inflationary periods is shown. A van der Waals quintessence model is revisited and cyclic Universe solution again found. 
Rossen I. Ivanov and Emil M. Prodanov
gr-qc astro-ph.CO hep-th