Sökning: "Cosmological"
Visar resultat 1 - 5 av 102 avhandlingar innehållade ordet Cosmological.
1. Cosmological constants galore
Sammanfattning : .... LÄS MER
2. Observations of distant supernovae and cosmological implications
Sammanfattning : Type Ia supernovae can be used as distance indicators for probing the expansion history of the Universe. The method has proved to be an efficient tool in cosmology and played a decisive role in the discovery of a yet unknown energy form, dark energy, that drives the accelerated expansion of the Universe. LÄS MER
3. Cosmological aspects of universal extra dimensions
Sammanfattning : It is an intriguing possibility that our world may consist of more than three spatial dimensions, compactified on such a small scale that they so far have escaped detection. In this thesis, a particular realization of this idea -- the scenario of so-called 'universal extra dimensions' (UED) -- is studied in some detail, with a focus on cosmological consequences and appplications. LÄS MER
4. Cosmological Models and Singularities in General Relativity
Sammanfattning : This is a thesis on general relativity. It analyzes dynamical properties of Einstein's field equations in cosmology and in the vicinity of spacetime singularities in a number of different situations. LÄS MER
5. The asymptotic states of perfect fluid cosmological models
Sammanfattning : .... LÄS MER