Zobrazeno 1 - 10
of 44 383
pro vyhledávání: '"MISHRA, B"'
Teleparallel description of gravity theories where the gravity is mediated through the tetrad field and consequent torsion provide an alternative route to explain the late time cosmic speed up issue. Generalization of the teleparallel gravity theory
Externí odkaz:
http://arxiv.org/abs/2410.23307
We investigate the cosmic evolution of the Universe across different cosmological epochs in exponential Weyl-type $f(Q, T)$ gravity model. The theoretical analysis involves a detailed dynamical system approach, where we define dimensionless variables
Externí odkaz:
http://arxiv.org/abs/2409.17193
In this study, we investigate traversable wormhole solutions within the setup of $f(R,\mathcal{L}_{m})$ gravity, a modified theory of gravity where the gravitational action relies upon the matter Lagrangian $\mathcal{L}_{m}$ and the Ricci scalar $R$.
Externí odkaz:
http://arxiv.org/abs/2409.12160
This study effectively reconstructs a cosmological model utilizing covariant $f(Q)$ gravity within Connection-III and FLRW spacetime. The dynamic behavior of the reconstructed model is thoroughly analyzed using the Hubble parameter $H(z)$ and various
Externí odkaz:
http://arxiv.org/abs/2408.12846
In this work, we present a method for numerically solving the Friedmann equations of modified $f(\mathcal{G})$ gravity in the presence of pressureless matter. This method enables us to predict the redshift behavior of the Hubble expansion rate. To ev
Externí odkaz:
http://arxiv.org/abs/2408.03683
Publikováno v:
Annals of Physics 470 (2024) 169808
In this paper, we have outlined the development of an autonomous dynamical system within a general scalar-tensor gravity framework. This framework encompasses the overall structure of the non-minimally coupled scalar field functions for both the tors
Externí odkaz:
http://arxiv.org/abs/2408.03417
In this work, we consider the corrections to the cosmological models based on the teleparallel equivalent of general relativity induced by the non-minimal coupling between scalar field and torsion. To determine these corrections, we consider a power-
Externí odkaz:
http://arxiv.org/abs/2407.14542
In this paper, we have investigated the phase space analysis in modified Galileon cosmology, where the Galileon term is considered a coupled scalar field, $F(\phi)$. We focus on the exponential type function of $F(\phi)$ and the three well-motivated
Externí odkaz:
http://arxiv.org/abs/2407.11428
In the paper, we present an accelerating cosmological model in $f(R,\mathcal{L}_{m})$ gravity with the parameter constrained through the cosmological data sets. At the beginning, we have employed a functional form of $f(R,\mathcal{L}_{m}) =\frac{R}{2
Externí odkaz:
http://arxiv.org/abs/2407.09569
Publikováno v:
Journal of Cosmology and Astroparticle Physics, 2024(09), 011
Assuming static and spherically symmetric stars with perfect fluid matter, we used realistic equations of state to study neutron stars in covariant $f(Q)$ gravity. The structure profiles and properties of neutron stars such as mass, radius and compac
Externí odkaz:
http://arxiv.org/abs/2407.03669