5 papers
Constraining Dark Energy Dynamics in Curved Spacetime with Current Observations
D. Revanth Kumar, Santosh Kumar Yadav
We investigate a dark energy (DE) equation of state (EoS) parametrization in a curved spacetime using current observations. We constrain the model parameters by using observational…
Bouncing Cosmological Models and Energy Conditions in gravity
S. A. Kadam, V. A. Kshirsagar, Santosh Kumar Yadav
This study explores the bouncing solutions within the framework of modified gravity. We examine four prominent bouncing models, the symmetric bounce, super bounce, osci…
Observational tests of \texorpdfstring{}{Lambda(t)} cosmology in light of DESI DR2
D. Revanth Kumar, Santosh Kumar Yadav, S. A. Kadam
In this article, we investigate two phenomenological decaying vacuum cosmological models describing the accelerated expansion of the Universe. We constrain the model parameters usi…
Precision Constraints on New Dark Energy Parametrization from DESI BAO DR2
D. Revanth Kumar, Santosh Kumar Yadav
In this article, we investigate a new parametrization of the dark energy equation of state (EoS) with a single parameter for a barotropic fluid that deviates from the standard …
Cosmological Dynamics on a Novel Gravity Model with Recent DESI DR2 Observation
S. A. Kadam, D. Revanth Kumar, Santosh Kumar Yadav
In this article, we investigate the cosmological viability of a modified symmetric teleparallel gravity model within the framework. We derive observational constraints on th…