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1 
Models of the early universeDechant, PierrePhilippe January 2011 (has links)
No description available.

2 
Inhomogeneous conformal cosmological models / by Robert Alan CampbellCampbell, Robert Alan January 1985 (has links)
Bibliography: leaves 152156 / ix, 156 leaves : ill ; 31 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)University of Adelaide, 1986

3 
Cosmologies with causal bulk viscosity.Kgathi, Matome Abiel. January 1996 (has links)
A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg,
in fulfilment of the requirements for the degree of Doctor of Philosophy.
Johannesburg / In this thesis we investigate the evolution of viscous FRW cosmological models for two
different constitutive equations for the bulk viscous pressure a, namely (Abbreviation abstract) / Andrew Chakane 2018

4 
Cosmologies with causal bulk viscosityKgathi, Matome Abiel January 1996 (has links)
A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg,
in fulfilment of the requirements for the degree of Doctor of Philosophy.
Johannesburg, / In this thesis we investigate the evolution of viscous FRW cosmological models for two
different constitutive equations for the bulk viscous pressure a, namely: The truncated
theory,,,,,,,,,,,,,,,, and the full (nontruncated] IsraelStewart theory ...................We first review the relativistic theory of nonequilibrium thermodynamics developed by
Eckart (1940) and the essentially equivalent formulation of the theory given by Landau
and Lifshitz (1958). We give a, brief description of the relativistic secondorder theories
found by Israel and Stewart (1976) and subsequently developed by Pavon, Jou, and coworkers
(1982, 1993). All this is done in order to develop the tools for the study of the
evolution of FRW cosmological models in the context of causal thermodynamics.
We find new exact and perturbative solutions of Einstein's field equations for the truncated
IsraelStewart theory of irreversible thermodynamics. We show that viscous effects speed
up the expansion of the universe. We also consider a viscous fluid in the presence of a
" noninteracting scalar field and show that inflationary solutions exist. The full theory of
bulk viscosity is applied to dissipative FRW spacetimes. New causal viscous inflationary
solutions are presented. These solutions extend the results obtained by Maartens (1995a)
to cases where the coefficient of bulk viscosity e and the relaxation time r are independent.
Powerlaw solutions for the scale factor are shown to exist. / Andrew Chakane 2018

5 
Protogalaxy formation from inhomogeneities in cosmological modelsRankin, John Robert January 1977 (has links)
xii, 218 leaves / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.1978) from the Dept. of Mathematical Physics, University of Adelaide

6 
Cosmological models with quintessence : dynamical properties and observational constraintsNg, ShaoChin Cindy. January 2001 (has links) (PDF)
Bibliography: leaves 100106. Studies different models of "quintessence", in particular, a quintessence arising from an ultralight pseudo NambuGoldstone boson. Overviews dynamical properties for these models using phasespace analyses to study attractor and tracker solutions. Studies highredshift type Ia supernovae constraints on these models. Studies the impact of a simple phenomenological model for supernovae luminosity evolution on the PNGB models and the potentials of a future supernovae data set to discriminate the PNGB models over the other quintessence models. Studies gravitational lensing statistics of high luminosity quasars upon the quintessence models.

7 
Cosmological models with quintessence : dynamical properties and observational constraints / ShaoChin Cindy Ng.Ng, ShaoChin Cindy January 2001 (has links)
Bibliography: leaves 100106. / v, 107 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Studies different models of "quintessence", in particular, a quintessence arising from an ultralight pseudo NambuGoldstone boson. Overviews dynamical properties for these models using phasespace analyses to study attractor and tracker solutions. Studies highredshift type Ia supernovae constraints on these models. Studies the impact of a simple phenomenological model for supernovae luminosity evolution on the PNGB models and the potentials of a future supernovae data set to discriminate the PNGB models over the other quintessence models. Studies gravitational lensing statistics of high luminosity quasars upon the quintessence models. / Thesis (Ph.D.)University of Adelaide, Dept. of Physics and Mathematical Physics, 2001

8 
Newtonian and postNewtonian cosmology / Tamath Rainsford.Rainsford, Tamath Jane January 2000 (has links)
Includes bibliographical references (leaves 168179). / xiii, 179 leaves ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Finds that the postNewtonian approximation seems to be a better approximation of the general relativistic theory than the standard Newtonian theory. / Thesis (Ph.D.)Adelaide University, Dept. of Physics and Mathematical Physics, 2001

9 
Spatiallyhomogeneous VlasovEinstein dynamicsOkabe, Takahide 05 October 2012 (has links)
The influence of matter described by the Vlasov equation, on the evolution of anisotropy in the spatiallyhomogeneous universes, called the Bianchi cosmologies, is studied. Due to the spatialhomogeneity, the Einstein equations for each Bianchi Type are reduced to a set of coupled ordinary differential equations, which has Hamiltonian form with the metric components being the canonical coordinates. In the vacuum Bianchi cosmologies, it is known that a curvature potential, which comes from the symmetries of the threedimensional Lie groups, determines the basic properties of the evolution of anisotropy. In this work, matter potentials are constructed for Vlasov matter. They are obtained by first introducing a new matter action principle for the Vlasov equation, in terms of a conjugate pair of functions, and then enforcing the symmetry to obtain a reduction. This yields an expression for the matter potential in terms of the phase space density, which is further reduced by assuming cold streaming matter. Some vacuum Bianchi cosmologies and Type I with Vlasov matter are compared. It is shown that the Vlasovmatter potential for cold streaming matter results in qualitatively distinct dynamics from the wellknown vacuum Bianchi cosmologies. / text

10 
Singularity structure of scalar field cosmologies / Scott Foster.Foster, Scott January 1996 (has links)
Errata inserted opposite p.177. / Bibliography: p. 173177. / x, 177 p. : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / The classical dynamical structure of cosomological models in which the matter content of the universe consists of a scalar field with arbitrary nonnegative potential is analyzed in full. (abstract) / Thesis (Ph.D.)University of Adelaide, Dept. of Physics and Mathematical Physics, 1996?

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