Anisotropic Bianchi Type-I and Type-II Bulk Viscous String Cosmological Models Coupled with Zero Mass Scalar Field

2014 ◽  
Vol 53 (6) ◽  
pp. 2051-2064 ◽  
Author(s):  
R. Venkateswarlu ◽  
K. Sreenivas
Keyword(s):  
Scalar Field ◽  
Bianchi Type ◽  
Cosmological Models ◽  
Type I ◽  
Type Ii ◽  
Bianchi Type I ◽  
Zero Mass ◽  
Bulk Viscous

Qualitative study of Bianchi type-I, III and Kantowski–Sachs cosmological models with scalar field

2016 ◽  
Vol 13 (10) ◽  
pp. 1650123 ◽  
Author(s):  
Raghavendra Chaubey ◽  
Rakesh Raushan
Keyword(s):  
Scalar Field ◽  
Evolution Equations ◽  
Bianchi Type ◽  
State Parameter ◽  
Cosmological Models ◽  
Type I ◽  
Effective Equation ◽  
Bianchi Type I ◽  
Transformation Of Variables ◽  
Dynamical System Method

A qualitative analysis of Bianchi type-I, III and Kantowski–Sachs (KS) cosmological models with a scalar field and matter fluid is performed. The analysis of the resulting equations is made by the dynamical system method. To analyze the evolution equations, we have introduced suitable transformation of variables. The evolution of the corresponding solutions is represented by curves in the phase-plane diagram. We analyze the evolution of the effective equation of state parameter for Bianchi type-I, III and KS cosmological models. The nature of critical points are analyzed and stable attractors are examined for each cosmological model.

Stability of LRS Bianchi type-I cosmological models in f(R, T)-gravity

2019 ◽  
Vol 19 (4) ◽  
pp. 055 ◽  
Author(s):  
Umesh Kumar Sharma ◽  
Rashid Zia ◽  
Anirudh Pradhan ◽  
Aroon Beesham
Keyword(s):  
Bianchi Type ◽  
Cosmological Models ◽  
Type I ◽  
Bianchi Type I

Bianchi Type I String Dust Magnetized Cosmological Models in Lyra Geometry

2010 ◽  
Vol 54 (1) ◽  
pp. 197-202 ◽  
Author(s):  
Raj Bali ◽  
Naresh K Chandnani ◽  
Lokesh Kumar Gupta
Keyword(s):  
Bianchi Type ◽  
Lyra Geometry ◽  
Cosmological Models ◽  
Type I ◽  
Bianchi Type I
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