We review the effect of the formation of nonlinear structures on the expansion rate, spatial
curvature, and light propagation in the universe, focusing on the possibility that this effect …

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In this paper, we have presented an accelerating cosmological model of the Universe in an
extended symmetric teleparallel gravity or f (Q, T) gravity. The parametric form of the Hubble …

We present and employ a new kinematical approach to cosmological 'dark energy'studies.
We construct models in terms of the dimensionless second and third derivatives of the …

The new 182 gold supernova Ia data, the baryon acoustic oscillation measurement and the
shift parameter determined from the Sloan Digital Sky Survey, and the three-year Wilkinson …

The transition redshift (deceleration/acceleration) is discussed by expanding the
deceleration parameter to first order around its present value. A detailed study is carried out …

The present work is based on a parametric reconstruction of the deceleration parameter q
(z) in a model for the spatially flat FRW universe filled with dark energy and non-relativistic …

In this paper, we investigate the modified symmetric teleparallel gravity or f (Q) gravity,
where Q is the nonmetricity, to study the evolutionary history of the universe by considering …

We study the accelerated expansion phase of the universe by using the kinematic approach.
In particular, the deceleration parameter q is parametrized in a model-independent way …

The presented paper is a comprehensive analysis of two dark energy (DE) cosmological
models wherein exact solutions of the Einstein field equations (EFEs) are obtained in a …