https://doi.org/10.1140/epjc/s10052-023-12366-1
Regular Article - Theoretical Physics
Averaging generalized scalar field cosmologies IV: locally rotationally symmetric Bianchi V model
1
Departamento de Matemáticas, Universidad Católica del Norte, Casilla 1280, Avenida. Angamos 0610, Antofagasta, Chile
2
Institute of Systems Science, Durban University of Technology, PO Box 1334, 4000, Durban, South Africa
Received:
5
October
2023
Accepted:
17
December
2023
Published online:
9
January
2024
This research focuses on scalar field cosmologies with a generalized harmonic potential. Our attention is centred on the anisotropic LRS Bianchi I and III metrics, Bianchi V metrics, and their isotropic limits. We provide a comprehensive overview of the first two metrics classes and offer new findings for Bianchi V metrics. We show that the Hubble parameter is a time-dependent perturbation parameter that controls the magnitude of the error between full-system and time-averaged solutions as it decreases, such that those complete and time-averaged systems have the same asymptotic behaviour. Therefore, oscillations entering the system can be controlled and smoothed out, simplifying the problem.
© The Author(s) 2024
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