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Journal of Siberian Federal University. Mathematics & Physics, 2025, Volume 18, Issue 4, Pages 519–531 (Mi jsfu1267)  

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
References:
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
Bibliographic databases:
Document Type: Article
UDC: 524.8
Language: English
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
Citation in format AMSBIB
\Bibitem{KriSobSan25}
\by Mandala~Krishna, Koppala~Sobhanbabu, Rajamahanthi~Santhikumar
\paper Two fluid scenario dark energy cosmological model with linearly varying deceleration parameter in Lyra's geometry
\jour J. Sib. Fed. Univ. Math. Phys.
\yr 2025
\vol 18
\issue 4
\pages 519--531
\mathnet{http://mi.mathnet.ru/jsfu1267}
\edn{https://elibrary.ru/QRNGKM}
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    Журнал Сибирского федерального университета. Серия "Математика и физика"
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