output
20102026
most citedNew Hyperon Equations of State for Supernovae and Neutron Stars in Density-dependent Hadron Field Theory

250 citations

Showing 2021 · gr-qcShow all

38 papers · 2 filters

gr-qc2021★ 91 cited

Traversable wormhole inspired by non-commutative geometries in gravity with conformal symmetry

G. Mustafa, Zinnat Hassan, P. K. Sahoo

This article is based on the study of wormhole geometries in the context of symmetric teleparallel gravity or gravity, where is the non-metricity scalar, and it is respo…

gr-qc2021★ 36 cited

Traversable wormhole models in gravity

B. Mishra, A. S. Agrawal, S. K. Tripathy +1

In this work, we analyze the wormhole solutions in gravity. Specifically we sought for wormhole geometry solutions for the following three shape functions: (i) $b(r)=r_{0}+ρ…

gr-qc2021

Constraints on Energy Conditions in Gravity

Lakhan V. Jaybhaye, Sanjay Mandal, P. K. Sahoo

In this manuscript, we consider the extension of the Hilbert-Einstein action to analyze several interesting features of the theory. More specifically, the Lagrangian is repl…

gr-qc2021★ 19 cited

Cosmological model with time varying deceleration parameter in gravity

Santosh V. Lohakare, S. K. Tripathy, B. Mishra

In this paper, we study the dynamical behaviour of the Universe in the theory of gravity, where and respectively denote the Ricci scalar and Gauss-Bonnet invariant…

gr-qc2021★ 18 cited

Phantom energy supported wormhole model in gravity assuming conformal motion

Piyali Bhar, Pramit Rej, P. K. Sahoo

In this article, we have discussed Morris and Thorne (MT) wormhole solutions in a modified theory of gravity that admits conformal motion. Here we explore the wormhole solutions in…

gr-qc2021★ 12 cited

f(R) wormholes embedded in a pseudo--Euclidean space

A. S. Agrawal, B. Mishra, Francisco Tello-Ortiz +1

This work is devoted to the study of analytic wormhole solutions within the framework of gravity theory. To check the possibility of having wormhole structures satisfying en…

gr-qc2021★ 88 cited

Theory and Complex Cosmological Structure

Z. Yousaf, M. Z. Bhatti, S. Khan +1

The basic objective of this investigation is to explore the impact of a novel gravitational modification, specifically, the (where $\mathbf{T}^2 \equ…

gr-qc2021★ 43 cited

Rip cosmological models in extended symmetric teleparallel gravity

Laxmipriya Pati, S. A. Kadam, S. K. Tripathy +1

In this paper we have investigated some rip cosmological models in an extended symmetric teleparallel gravity theory. We consider the form in the Einstein-Hilbert…

gr-qc2021★ 46 cited

Viscous cosmology in the Weyl-type gravity

Gaurav Gadbail, Simran Arora, P. K. Sahoo

Bulk viscosity is the only viscous influence that can change the background dynamics in a homogeneous and isotropic universe. In the present work, we analyze the bulk viscous cosmo…

gr-qc2021★ 26 cited

How a projectively flat geometry regulates -gravity theory?

Tee-How Loo, Avik De, Sanjay Mandal +1

In the present paper we examine a projectively flat spacetime solution of -gravity theory. It is seen that once we deploy projective flatness in the geometry of the spacetime…

gr-qc2021★ 23 cited

Bouncing cosmology in extended gravity and its reconstruction as dark energy model

A. S. Agrawal, Francisco Tello-Ortiz, B. Mishra +1

In this paper, we have presented a bouncing cosmological model of the Universe in an extended theory of gravity. The dynamical behaviour of the model obtained from the flat FLRW sp…

gr-qc2021★ 18 cited

Periodic cosmic evolution in gravity formalism

Parbati Sahoo, Avik De, Tee-How Loo +1

We study the periodic cosmic transit behavior of accelerated universe in the framework of symmetric teleparallelism. The exact solution of field equations is obtained by employing…

gr-qc2021★ 41 cited

Power-law cosmology in Weyl-type gravity

Gaurav Gadbail, Simran Arora, P. K. Sahoo

Gravity is attributed to the spacetime curvature in classical General Relativity (GR). But, other equivalent formulation or representations of GR, such as torsion or non-metricity…

gr-qc2021★ 169 cited

Wormhole solutions in symmetric teleparallel gravity

G. Mustafa, Zinnat Hassan, P. H. R. S. Moraes +1

In this letter we obtain wormhole solutions from the Karmarkar condition in gravity formalism, in which is the nonmetricity scalar. We show that the combination of such…

gr-qc2021★ 98 cited

Matter Bounce Scenario and the Dynamical aspects in f(Q,T) Gravity

A. S. Agrawal, Laxmipriya Pati, S. K. Tripathy +1

In the context of the late time cosmic acceleration phenomenon, many geometrically modified theories of gravity have been proposed in recent times. In this paper, we have investiga…

gr-qc2021★ 7 cited

A complete study of conformally flat pseudo-symmetric spacetimes in the theory of F(R)-gravity

Avik De, Simran Arora, Uday Chand De +1

We investigate the geometrical and physical structures of a pseudo-symmetric spacetime with timelike vector under the condition of conformal flatness. We classify it into…

gr-qc2021★ 50 cited

Model parameters in the context of late time cosmic acceleration in gravity

Laxmipriya Pati, B. Mishra, S. K. Tripathy

The dynamical aspects of some accelerating models are investigated in the framework of an extension of symmetric teleparllel gravity dubbed as f(Q,T) gravity. In this gravity theor…

gr-qc2021★ 11 cited

How a conformally flat (GR)4 impacts Gauss-Bonnet gravity?

Avik De, Tee-How Loo, Raja Solanki +1

First and foremost, we show that a 4-dimensional conformally flat generalized Ricci recurrent spacetime is an Einstein manifold. We examine such a spacetime as a solution…

gr-qc2021

Cosmological models with Big rip and Pseudo rip Scenarios in extended theory of gravity

Pratik P. Ray, Sankarsan Tarai, B. Mishra +1

In this paper, we have presented the big rip and pseudo rip cosmological models in an extended theory of gravity. The matter field is considered to be that of perfect fluid. The ge…

gr-qc2021★ 48 cited

Cosmological bouncing scenarios in symmetric teleparallel gravity

Sanjay Mandal, N. Myrzakulov, P. K. Sahoo +1

Symmetric Teleparallel Gravity is an exceptional theory of gravity that is consistent with the vanishing affine connection. This theory is an alternative and a simpler geometrical…

gr-qc2021★ 30 cited

Cosmological models with a Hybrid Scale Factor

S. K. Tripathy, B. Mishra, Maxim Khlopov +1

In this brief review, we present some cosmological models with a Hybrid Scale Factor (HSF) in the framework of general relativity (GR). The hybrid scale factor fosters an early dec…

gr-qc2021

Dynamics of quasi de Sitter and linear combination of exponential models in extended gravity

B. Mishra, Eesha Gadia, S. K. Tripathy

In this paper, we have studied the dynamical aspects of some cosmological models in an isotropic space-time within the framework of an extended gravity theory. Two accelerating cos…

gr-qc2021★ 35 cited

Bulk viscous matter and the cosmic acceleration of the universe in gravity

Simran Arora, S. K. J. Pacif, Abhishek Parida +1

We have studied bulk viscosity in the modified gravity theory formalism, where represents the non-metricity and denotes the trace of energy-momentum tensor within…

gr-qc2021★ 64 cited

Constraining effective equation of state in gravity

Simran Arora, Abhishek Parida, P. K. Sahoo

New high-precision observations are now possible to constrain different gravity theories. To examine the accelerated expansion of the Universe, we used the newly proposed …