Research Article

Some Exact Bianchi Types Cosmological Models in f(R, T) Theory of Gravity

Volume: 2 Number: 3 December 26, 2019
Ahmed Al-haysah *, Abdulvahid Hasmani *
EN

Some Exact Bianchi Types Cosmological Models in f(R, T) Theory of Gravity

Abstract

In this paper, we attempt to study spatially homogeneous Bianchi types-III, V,  VI$_0$ $\&$ VI$_h$  cosmological models in $f(R, T)$  theory of gravity. Here the models are obtained by assuming forms of the function $f(R, T)$ as  $f(R, T)= R + 2f(T)$ and $f(R, T) = f_1(R)+f_2(T)$. The exact solutions of Einstein's field equations (EFEs) have been obtained for two different types of physically viable cosmologies using a special form of Hubble parameter (HP). The physical and geometrical properties of these models have been discussed and expressions for the Ricci scalar $R$ in each case are obtained.

Keywords

Bianchi types-III V VI$_0$ $\&$ VI$_h$,$f(R-T)$ theory of gravity,Cosmic time,Cosmological constant,Exact solutions,Hubble parameter,Variational principle

References

  1. [1] S. Cotsakis, E. Papantonopoulos, Cosmological Crossroads: An Advanced Course in Mathematical, Physical and String Cosmology, Springer Sci. & Business Media, 2002.
  2. [2] P. Agrawal, D. Pawar, Plane symmetric cosmological model with quark and strange quark matter in f (R;T) theory of gravity, J. Astrophys. Astr., 38(2) (2017), 1-7, https://doi.org/10.1007/s12036-016-9420-y.
  3. [3] R. Chaubey, A. Shukla, A new class of Bianchi cosmological models in f (R;T) gravity, Astrophys. Space Sci., 343(1) (2013), 415-422, https://doi.org/10.1007/s10509-012-1204-5.
  4. [4] T. Harko, F. S. Lobo, S. Nojiri, S. D. Odintsov, f (R;T) gravity, Phys. Rev. D, 84(2) (2011), 024020-1 to 024020-14.
  5. [5] T. Harko, F. S. Lobo, Generalized dark gravity, Int. J. of Modern Phys. D, 21(11) (2012), 1242019-1 to 1242019-8, https://doi.org/10.1142/S0218-271812420199.
  6. [6] P. Sahoo, B. Mishra, G. C. Reddy, Axially symmetric cosmological model in f (R;T) gravity, Eur. Phys. J. Plus, 129(3) (2014), 1-8, https://doi.org/10.1140/epjp/i2014-14049-7.
  7. [7] P. Moraes, P. Sahoo, The simplest non-minimal matter-geometry coupling in the f (R;T) cosmology, The Eur. Phys. J. C, 77(7) (2017), 1-8, https://doi10.1140/epjc/s10052-017-5062-8.
  8. [8] K. Adhav, LRS Bianchi type-I cosmological model in f (R;T) theory of gravity, Astrophys. Space Sci., 339(2) (2012), 365-369, https://doi.org/10.10-07/s10509-011-09638.
  9. [9] D. Pawar, P. Arawal, Dark energy cosmological model in f (R;T) theory of gravity, Prespacetime J., 6(3) (2015), 719-732.
  10. [10] D. Pawar, P. Agrawal. Role of constant deceleration parameter in cosmological model filled with dark energy in f (R;T) theory, Bulg. J. of Phys., 43(2), (2016), 148-155.
APA
Al-haysah, A., & Hasmani, A. (2019). Some Exact Bianchi Types Cosmological Models in f(R, T) Theory of Gravity. Journal of Mathematical Sciences and Modelling, 2(3), 163-175. https://doi.org/10.33187/jmsm.435340
AMA
1.Al-haysah A, Hasmani A. Some Exact Bianchi Types Cosmological Models in f(R, T) Theory of Gravity. Journal of Mathematical Sciences and Modelling. 2019;2(3):163-175. doi:10.33187/jmsm.435340
Chicago
Al-haysah, Ahmed, and Abdulvahid Hasmani. 2019. “Some Exact Bianchi Types Cosmological Models in F(R, T) Theory of Gravity”. Journal of Mathematical Sciences and Modelling 2 (3): 163-75. https://doi.org/10.33187/jmsm.435340.
EndNote
Al-haysah A, Hasmani A (December 1, 2019) Some Exact Bianchi Types Cosmological Models in f(R, T) Theory of Gravity. Journal of Mathematical Sciences and Modelling 2 3 163–175.
IEEE
[1]A. Al-haysah and A. Hasmani, “Some Exact Bianchi Types Cosmological Models in f(R, T) Theory of Gravity”, Journal of Mathematical Sciences and Modelling, vol. 2, no. 3, pp. 163–175, Dec. 2019, doi: 10.33187/jmsm.435340.
ISNAD
Al-haysah, Ahmed - Hasmani, Abdulvahid. “Some Exact Bianchi Types Cosmological Models in F(R, T) Theory of Gravity”. Journal of Mathematical Sciences and Modelling 2/3 (December 1, 2019): 163-175. https://doi.org/10.33187/jmsm.435340.
JAMA
1.Al-haysah A, Hasmani A. Some Exact Bianchi Types Cosmological Models in f(R, T) Theory of Gravity. Journal of Mathematical Sciences and Modelling. 2019;2:163–175.
MLA
Al-haysah, Ahmed, and Abdulvahid Hasmani. “Some Exact Bianchi Types Cosmological Models in F(R, T) Theory of Gravity”. Journal of Mathematical Sciences and Modelling, vol. 2, no. 3, Dec. 2019, pp. 163-75, doi:10.33187/jmsm.435340.
Vancouver
1.Ahmed Al-haysah, Abdulvahid Hasmani. Some Exact Bianchi Types Cosmological Models in f(R, T) Theory of Gravity. Journal of Mathematical Sciences and Modelling. 2019 Dec. 1;2(3):163-75. doi:10.33187/jmsm.435340