scholarly journals Bianchi Type- II Universe with Anisotropic Dark Energy in Lyra Geometry

2017 ◽  
Vol 2 (4) ◽  
pp. 231-237
Author(s):  
R. K. Dubey ◽  
◽  
Shri Ram ◽  
Neelam Yadav ◽  
Vipendra Dwivedi ◽  
...  
Keyword(s):  
Dark Energy ◽  
Bianchi Type ◽  
Lyra Geometry ◽  
Type Ii ◽  
Anisotropic Dark Energy

Magnetized anisotropic dark energy cosmological models in scale covariant theory of gravitation

2014 ◽  
Vol 23 (07) ◽  
pp. 1450065 ◽  
Author(s):  
S. D. Katore ◽  
M. M. Sancheti ◽  
S. P. Hatkar
Keyword(s):  
Dark Energy ◽  
Bianchi Type ◽  
Covariant Theory ◽  
Type Ii ◽  
Field Equations ◽  
Scale Covariant Theory ◽  
Anisotropic Dark Energy ◽  
Expansion Scalar ◽  
Viii And Ix ◽  
Theory Of Gravitation

In the present paper, we have investigated Bianchi type II, VIII and IX spacetime in the presence of magnetized anisotropic dark energy in the Scale covariant theory of gravitation. Exact solution of the field equations are obtained by assuming the expansion anisotropy (the ratio of shear scalar to expansion scalar) to be a function of average scale factor. The isotropy of the fluid, space and expansion are examined.

Bianchi type-VI0 cosmological models with anisotropic dark energy

2010 ◽  
Vol 332 (2) ◽  
pp. 497-502 ◽  
Author(s):  
K. S. Adhav ◽  
A. S. Bansod ◽  
S. L. Munde ◽  
R. G. Nakwal
Keyword(s):  
Dark Energy ◽  
Bianchi Type ◽  
Cosmological Models ◽  
Anisotropic Dark Energy ◽  
Bianchi Type Vi0

Anisotropic Bianchi type-II modified holographic Ricci dark energy model in scale-covariant theory of gravitation

2021 ◽  
Author(s):  
Shri Ram ◽  
S. Chandel ◽  
M.K. Verma
Keyword(s):  
Dark Energy ◽  
Bianchi Type ◽  
Covariant Theory ◽  
Type Ii ◽  
Field Equations ◽  
Ricci Dark Energy ◽  
Scale Covariant Theory ◽  
Cosmological Observations ◽  
Negative Constant ◽  
Theory Of Gravitation

In this paper, we obtain an anisotropic Bianchi type-II space-time with dark matter and the modified holographic Ricci dark energy in the scale-covariant theory of gravitation. Exact solutions of the field equations are obtained by assuming (I) a negative constant value of the deceleration parameter (II) the component σ<sup>1</sup><sub>1</sub> of the shear tensor σ<sup>j</sup><sub>i</sub> is proportional to the mean Hubble parameter and (III) the gauge function Φ is proportional to a power function of the average scale factor. We have also discussed some important physical aspects of the model which is in agreement with the modern cosmological observations.

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