Isotropization of Slowly Expanding Spacetimes
| Autor: | Hamed Barzegar, Gernot Heißel, David Fajman |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Toroid 010308 nuclear & particles physics Isotropy Diagonal FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Mathematical Physics (math-ph) 01 natural sciences General Relativity and Quantum Cosmology Symmetry (physics) Massless particle 0103 physical sciences Radiative transfer Asymptote 010306 general physics Mathematical Physics Topology (chemistry) Mathematical physics |
| DOI: | 10.48550/arxiv.1904.13290 |
| Popis: | We show that the homogeneous, massless Einstein-Vlasov system with toroidal spatial topology and diagonal Bianchi type I symmetry for initial data close to isotropic data isotropizes towards the future and in particular asymptotes to a radiative Einstein-deSitter model. We use an energy method to obtain quantitative estimates on the rate of isotropization in this class of models. Comment: Added references, argument in section 3 revised |
| Databáze: | OpenAIRE |
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