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Applied mathematics, Particles and fields physics
Phase-plane stability analysis of a dynamical system describing the Universe as a two-fraction uid containing baryonic dust and real virial gas quintessence is presented. Existence of a stable periodic solution experiencing in ationary periods is shown. A van der Waals quintessence model is revisited and cyclic Universe solution again found.
Ivanov, R. and Prodanov, E. "Cyclic universe with an inflationary phase from a cosmological model with real gas quintessence (2012). Physical Review D- Particles, Fields, Gravitation and Cosmology, Vol. 86, 8, art. no. 083536