Bianchi type-I transit cosmological models with time dependent gravitational and cosmological constants

2014 ◽  
Vol 88 (7) ◽  
pp. 757-765 ◽  
Author(s):  
A Pradhan ◽  
A K Pandey ◽  
R K Mishra
Keyword(s):  
Bianchi Type ◽  
Cosmological Models ◽  
Time Dependent ◽  
Type I ◽  
Bianchi Type I ◽  
Gravitational And Cosmological Constants ◽  
Cosmological Constants

Bianchi type-I cosmological models with time dependent q and Λ-term in general relativity

2012 ◽  
Vol 343 (1) ◽  
pp. 489-497 ◽  
Author(s):  
Anirudh Pradhan ◽  
Rekha Jaiswal ◽  
Rajeev Kumar Khare
Keyword(s):  
General Relativity ◽  
Bianchi Type ◽  
Cosmological Models ◽  
Time Dependent ◽  
Type I ◽  
Bianchi Type I

Perfect fluid Bianchi type-I cosmological models with time-dependent cosmological term Λ

2018 ◽  
Vol 15 (08) ◽  
pp. 1850132
Author(s):  
J. P. Singh ◽  
Prashant S. Baghel ◽  
Abhay Singh
Keyword(s):  
Perfect Fluid ◽  
Bianchi Type ◽  
Cosmological Term ◽  
Cosmological Models ◽  
Time Dependent ◽  
Late Time ◽  
Type I ◽  
Field Equations ◽  
Vacuum Decay ◽  
Bianchi Type I

We present perfect fluid Bianchi type-I cosmological models with time-dependent cosmological term [Formula: see text]. Exact solutions of the Einstein’s field equations are presented via a suitable functional form for Hubble parameter [Formula: see text], which yields a model of the universe that represents initially decelerating and late-time accelerating expansion. We discuss, in the context of some vacuum decay laws, cosmological implications of the corresponding solutions. The physical and geometrical features of the models are also discussed.

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
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