Exact and Perturbed Friedmann-Lemaitre Cosmologies
| dc.creator | Ullrich, Paul | |
| dc.date | 2007-09-25 | |
| dc.date.accessioned | 2026-07-07T08:32:01Z | |
| dc.date.available | 2026-07-07T08:32:01Z | |
| dc.description | In this thesis we first apply the 1+3 covariant description of general relativity to analyze n-fluid Friedmann-Lemaitre (FL) cosmologies; that is, homogeneous and isotropic cosmologies whose matter-energy content consists of n non-interacting fluids. We are motivated to study FL models of this type as observations suggest the physical universe is closely described by a FL model with a matter content consisting of radiation, dust and a cosmological constant. Secondly, we use the 1+3 covariant description to analyse scalar, vector and tensor perturbations of FL cosmologies containing a perfect fluid and a cosmological constant. In particular, we provide a thorough discussion of the behaviour of perturbations in the physically interesting cases of a dust or radiation background. | |
| dc.description | Masters Thesis, 159 pages, 11 figures, 8 appendices | |
| dc.identifier | https://arxiv.org/abs/0709.3863 | |
| dc.identifier | http://arxiv.org/abs/0709.3863 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/138671 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Exact and Perturbed Friedmann-Lemaitre Cosmologies | |
| dc.type | text |