Anisotropic Cosmological Evolution in f(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe

Aylin Çalışkan

doi:10.28979/jarnas.1746551

Anisotropic Cosmological Evolution in f(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe

Abstract

In this study, we investigate the Bianchi type-V cosmological model filled with a perfect fluid characterized by a constant equation of state parameter within the framework of f(R,T) gravity. By adopting the physically justified assumption that the shear scalar is proportional to the expansion scalar, we derive exact analytical solutions to the modified gravitational field equations in f(R,T) gravity. We also derive the models key physical and geometrical parameters, and analyze their dynamical evolution in terms of cosmic time t. We then provide graphical representations to illustrate the temporal behavior of relevant cosmological quantities. The results indicate the model exhibits a phase of accelerated expansion, which is consistent with recent observational data. However, the universe does not evolve toward isotropy; instead, it originates from a Big Bang-type initial singularity.

Keywords

References

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Details

Primary Language

English

Subjects

Mathematical Physics (Other)

Journal Section

Research Article

Authors

Aylin Çalışkan ^*
0000-0003-1022-8749
Türkiye

Early Pub Date

September 30, 2025

Publication Date

September 30, 2025

Submission Date

July 19, 2025

Acceptance Date

September 3, 2025

Published in Issue

Year 2025 Volume: 11 Number: 3

DOI

https://doi.org/10.28979/jarnas.1746551

IZ

https://izlik.org/JA29HC59PP

Cite

RIS / Bibtex

APA

Çalışkan, A. (2025). Anisotropic Cosmological Evolution in f(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe. Journal of Advanced Research in Natural and Applied Sciences, 11(3), 297-308. https://doi.org/10.28979/jarnas.1746551

AMA

1.Çalışkan A. Anisotropic Cosmological Evolution in f(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe. JARNAS. 2025;11(3):297-308. doi:10.28979/jarnas.1746551

Chicago

Çalışkan, Aylin. 2025. “Anisotropic Cosmological Evolution in F(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe”. Journal of Advanced Research in Natural and Applied Sciences 11 (3): 297-308. https://doi.org/10.28979/jarnas.1746551.

EndNote

Çalışkan A (September 1, 2025) Anisotropic Cosmological Evolution in f(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe. Journal of Advanced Research in Natural and Applied Sciences 11 3 297–308.

IEEE

[1]A. Çalışkan, “Anisotropic Cosmological Evolution in f(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe”, JARNAS, vol. 11, no. 3, pp. 297–308, Sept. 2025, doi: 10.28979/jarnas.1746551.

ISNAD

Çalışkan, Aylin. “Anisotropic Cosmological Evolution in F(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe”. Journal of Advanced Research in Natural and Applied Sciences 11/3 (September 1, 2025): 297-308. https://doi.org/10.28979/jarnas.1746551.

JAMA

1.Çalışkan A. Anisotropic Cosmological Evolution in f(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe. JARNAS. 2025;11:297–308.

MLA

Çalışkan, Aylin. “Anisotropic Cosmological Evolution in F(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe”. Journal of Advanced Research in Natural and Applied Sciences, vol. 11, no. 3, Sept. 2025, pp. 297-08, doi:10.28979/jarnas.1746551.

Vancouver

1.Aylin Çalışkan. Anisotropic Cosmological Evolution in f(R,T) Gravity: Exact Solutions for Bianchi Type-V Universe. JARNAS. 2025 Sep. 1;11(3):297-308. doi:10.28979/jarnas.1746551

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