2007/02/23 by Jannie A. Leach, Leach, Jannie A., Peter K. S. Dunsby +3
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Relativity and Gravitational Theory #gr-qc
paper · pdf · doi:10.48550/arxiv.gr-qc/0702122
4 pages, 2 figures; to appear in the proceedings of the MG11
arxiv created 2007/02/23 · openalex publication_date 2007/02/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider the case of Rn-gravity and perform a detailed analysis of the dynamics in Bianchi I cosmologies which exhibit \it local rotational symmetry (LRS). We find exact solutions and study their behaviour and stability in terms of the values of the parameter n. In particular, we found a set of cosmic histories in which the universe is initially isotropic, then develops shear anisotropies which approaches a constant value.