ISSN: 2996-6701
Authors: Deogharia G*
Cosmological studies incorporate a set of differential equations which can be shown as an autonomous system. In our article, interactions are chosen. Solution of the dynamical system is analysed. Chevallier- Polarski-Linder dark energy model is opted and the concerned stability is studied. Point of periodicity is found to grow at high redshift for low dimensionless density parameters of matter. As we chronologically proceed towards the present time, this point is shifted towards high values of dimensionless density due to matter. At present time even the point of periodicity is seen to sustain. Distinguishably no attractor or past time attractor is noticed to get formed.
Keywords: Autonomous Dynamical System; Dark Energy; Dark Matter; Interactions; Phase Space; PACS Numbers: 95.36.+x, 95.35.+d, 98.80.Cq
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