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Journal of Siberian Federal University. Mathematics & Physics, 2025, Volume 18, Issue 4, Pages 519–531
(Mi jsfu1267)
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Two fluid scenario dark energy cosmological model with linearly varying deceleration parameter in Lyra's geometry
Mandala Krishnaa, Koppala Sobhanbabub, Rajamahanthi Santhikumarc a Raghu Engineering College, Visakhapatnam, AndhraPradesh, India-531162
b University Collage of Engineering Kakinada, Narasaraopeta, AndhraPradesh, India-522616
c Aditya Institute of Technology and Management, Tekkali, Srikakulam Dist AndhraPradesh, India-532201
Abstract:
In this paper, we explore the evaluation of the dark energy parameter within a spatially homogeneous and anisotropic Bianchi type-$VI_{0}$ spacetime, incorporating Lyra geometry. To obtain a determinate solution, we solve the field equations using the linearly varying deceleration parameter proposed by Akarsu and Dereli (2012). We analyze two scenarios involving interacting and non-interacting fluids (barotropic and dark energy) and derive general results for each case. The physical implications of these findings are also discussed.
Keywords:
dark energy, two fluid scenario, barotropic, Lyra’s geometry.
Received: 09.02.2025 Received in revised form: 22.04.2025 Accepted: 30.04.2025
Citation:
Mandala Krishna, Koppala Sobhanbabu, Rajamahanthi Santhikumar, “Two fluid scenario dark energy cosmological model with linearly varying deceleration parameter in Lyra's geometry”, J. Sib. Fed. Univ. Math. Phys., 18:4 (2025), 519–531
Linking options:
https://www.mathnet.ru/eng/jsfu1267 https://www.mathnet.ru/eng/jsfu/v18/i4/p519
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| Abstract page: | 40 | | Full-text PDF : | 33 | | References: | 16 |
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