[HTML][HTML] Cosmic acceleration and energy conditions in symmetric teleparallel f (Q) gravity

M Koussour, SH Shekh, M Bennai - Journal of High Energy Astrophysics, 2022 - Elsevier
In this paper, we study a spatially homogeneous and isotropic FLRW cosmological model in
framework of the symmetric teleparallel f (Q) gravity proposed by Jimenez et al.(Physical …

A generalized Buchdahl model for compact stars in f (R, T) gravity

J Kumar, HD Singh, AK Prasad - Physics of the Dark Universe, 2021 - Elsevier
In this paper, we study the stellar structure in terms of alternative theory of gravity specially
by f (R, T) gravity theory. Here, we consider the function f (R, T)= R+ 2 ς T where R is the …

Variable Chaplygin gas cosmologies in f (R, T) gravity with particle creation

N Hulke, GP Singh, BK Bishi, A Singh - New Astronomy, 2020 - Elsevier
Abstract A flat FLRW (Friedmann–Lemaitre–Robertson–Walker) cosmological model with
perfect fluid comprising of variable Chaplygin gas (VCG) has been studied in the context of f …

gravity models as alternatives to cosmic acceleration

PK Sahoo, P Moraes, P Sahoo, BK Bishi - The European Physical Journal …, 2018 - Springer
This article presents cosmological models that arise in a subclass of f (R, T)= f (R)+ f (T) f (R,
T)= f (R)+ f (T) gravity models, with different f (R) functions and fixed T-dependence. That is …

Traversable wormholes with logarithmic shape function in gravity

A Dixit, C Chawla, A Pradhan - International Journal of Geometric …, 2021 - World Scientific
In this work, a new form of the logarithmic shape function is proposed for the linear f (R, T)
gravity, f (R, T)= R+ 2 λ T where λ is an arbitrary coupling constant, in wormhole geometry …

A stable flat universe with variable cosmological constant in f (R, T) gravity

N Ahmed, SZ Alamri - Research in Astronomy and Astrophysics, 2018 - iopscience.iop.org
In this paper, a general FRW cosmological model has been constructed in f (R, T) gravity
reconstruction with variable cosmological constant. A number of solutions to the field …

Various dark energy models for variables G and in f(R, T) modified theory

C Aktaş - Modern Physics Letters A, 2019 - World Scientific
In this paper, we have researched tachyon field, k-essence and quintessence dark energy
(DE) models for Friedmann–Robertson–Walker (FRW) universe with varying G and Λ in f (R …

A new class of holographic dark energy models in LRS Bianchi Type-I

A Pradhan, VK Bhardwaj, A Dixit… - International Journal of …, 2021 - World Scientific
In this paper, we examine the LRS Bianchi-type-I cosmological model with holographic dark
energy. The exact solutions to the corresponding field equations are obtained by using the …

Anisotropic tilted cosmological model in f (R, T) theory of gravity

DD Pawar, SP Shahare - New Astronomy, 2020 - Elsevier
Abstract An anisotropic Tilted Marder's Cosmological Model is investigated in the framework
of f (R, T) theory of gravity, where R is the Ricci scalar and T is the trace of stress energy …

Mechanical conversion of the gravitational Einstein's constant

I David - Pramana, 2020 - Springer
This study attempts to answer the question of what space is made of and explores in this
objective the analogy between the Einstein's gravitational geometrical theory in one-and two …