Qualitative study of Lyra cosmologies with spatial curvature

A Singh - Chinese Journal of Physics, 2022 - Elsevier
We investigate the spatially curved Friedmann–Robertson–Walker space–time with Lyra
geometry model. The cosmological solutions are studied by using dynamical system …

Kantowski-Sachs Universe Filled with Perfect Fluid in f(R,T) Theory of Gravity

GC Samanta - International Journal of Theoretical Physics, 2013 - Springer
The exact solutions of the field equations in respect of Kantowski-Sachs universe filled with
perfect fluid in the framework of f (R, T) theory of gravity (Harko et al. in Phys. Rev. D 84 …

Lyra cosmologies with the dynamical system perspective

A Singh - Physica Scripta, 2024 - iopscience.iop.org
In this study, we revisit the homogeneous and isotropic, spatially curved model in the Lyra
geometry framework. We apply the dynamical system approach to study the Universe …

Phase-Plane Analysis of FRW Cosmological Model with Variable in Lyra Geometry

R Raushan, R Chaubey - Gravitation and Cosmology, 2022 - Springer
The present work deals with the dynamical evolution of Friedmann-Robertson-Walker (FRW)
Cosmologies with variable in Lyra geometry. We perform phase-plane analysis of the model …

The study of Kantowski-Sachs perfect fluid cosmological model in modified gravity

T Vinutha, K Niharika, KS Kavya - Astrophysics, 2023 - Springer
Kantowski-Sachs perfect fluid cosmological model is explored in modified gravity with
functional form f (R, T)= f 1 (R)+ f 2 (T) where R is Ricci scalar and T is the trace of …

Bianchi type-I bulk viscous cosmology with Chaplygin gas in Lyra Geometry

GP Singh, BK Bishi, PK Sahoo - Chinese Journal of Physics, 2016 - Elsevier
The main objective of this article is to study the Bianchi type-I space-time in presence of bulk
viscosity and Chaplygin gas in the context of Lyra geometry (LG). Exact solutions of the field …

Linear and center manifold analysis of FRW cosmological model with variable equation of state in Lyra geometry

R Raushan, S Angit, R Chaubey - The European Physical Journal …, 2021 - epjplus.epj.org
The present work deals with the dynamical evolution of flat FRW cosmological model with
variable equation of state in Lyra geometry. We investigate the phase-plane analysis of our …

Kantowski–Sachs perfect fluid cosmological model in - Gravity

T Vinutha, KV Vasavi, K Niharika… - Indian Journal of …, 2023 - Springer
In the present study, the Kantowski–Sachs perfect fluid cosmological model in modified
theory suggested by Harko et al. is obtained. In this paper, the functional form f (R, T)= f 1 …

Kantowski–Sachs bulk viscous string cosmological model in Brans–Dicke theory of gravitation

DRK Reddy, D Bharati, GV Vijaya Lakshmi - Astrophysics and Space …, 2014 - Springer
In this paper, we investigate spatially homogenous and anisotropic Kantowski–Sachs
cosmological model in Brans–Dicke (Phys. Rev. 124: 925, 1961) scalar–tensor theory of …

Vacuum expansion in arbitrary–gauge Lyra geometry

H Hova - Canadian Journal of Physics, 2014 - cdnsciencepub.com
We propose a cosmological model containing a cosmological term in arbitrary gauge in
Lyra's geometry. In the absence of matter fields (such as radiation or baryonic), a constant …