An interacting agegraphic dark energy model in the normal DGP braneworld is reported to have a stable dark-energy-dominated fixed point when beta < 1 - 2/(3n), and to avoid the big rip.
After introducing the model and the new phase-space variables, w e obtained a two dimen- sional autonomous system
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Interacting Agegraphic Dark Energy Model in DGP Braneworld Cosmology: Dynamical System Approach
An interacting agegraphic dark energy model in the normal DGP braneworld is reported to have a stable dark-energy-dominated fixed point when beta < 1 - 2/(3n), and to avoid the big rip.