2020/10/31 by Genly Leon, Andronikos Paliathanasis, N. Dimakis · 14 citations
Physics and Astronomy · #Advanced Differential Geometry Research #Black Holes and Theoretical Physics #Conservation law #Cosmology and Gravitation Theories #Field (mathematics) #Field equation #Gravitation #Gravitational field #Homogeneous space #Scalar (mathematics) #Scalar field #Scalar theories of gravitation #gr-qc #hep-th
paper · pdf · doi:10.1140/epjc/s10052-020-08721-1
published in The European Physical Journal C 80(12) (Springer Science+Business Media) · 18 pages, 2 figures, Latex2e source file, accepted in EPJC version
openalex created_date 2020/10/15 · arxiv created 2020/11/30 · openalex publication_date 2020/12/01 · arxiv updated 2020/12/30 · openalex updated_date 2026/08/05
Abstract Exact and analytic solutions in Einstein–Aether scalar field theory with Kantowski–Sachs background space are determined. The theory of point symmetries is applied to determine the functional form of the unknown functions which defines the gravitational model. Conservation laws are applied to reduce the order of the field equations and write the analytic solution. Moreover, in order to understand the physical behaviour of the cosmological model a detailed analysis of the asymptotic behaviour for solutions of the gravitational field equations is performed.