Almost-Pseudo-Ricci Symmetric FRW Universe with a Dynamic Cosmological Term and Equation of State

oleh: Sanjay Mandal, Avik De, Tee-How Loo, Pradyumn Kumar Sahoo

Format: Article
Diterbitkan: MDPI AG 2021-06-01

Deskripsi

The objective of the present paper is to investigate an almost-pseudo-Ricci symmetric FRW spacetime with a constant Ricci scalar in a dynamic cosmological term <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>Λ</mo><mo>(</mo><mi>t</mi><mo>)</mo></mrow></semantics></math></inline-formula> and equation of state (EoS) <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>ω</mi><mo>(</mo><mi>t</mi><mo>)</mo></mrow></semantics></math></inline-formula> scenario. Several cosmological parameters are calculated in this setting and thoroughly studied, which shows that the model satisfies the late-time accelerating expansion of the universe. We also examine all of the energy conditions to check our model’s self-stability.