Search for dissertations about: "GRAVITY MODEL"
Showing result 6 - 10 of 184 swedish dissertations containing the words GRAVITY MODEL.
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6. Cosmological models, nonideal fluids and viscous forces in general relativity
Abstract : This thesis addresses the open questions of providing a cosmological model describing an accelerated expanding Universe without violating the energy conditions or a model that contributes to the physical interpretation of the dark energy. The former case is analyzed considering a closed model based on a regular lattice of black holes using the Einstein equation in vacuum. READ MORE
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7. Gravity, gauge theories and the matrix model
Abstract : .... READ MORE
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8. A height datum for Uganda based on a gravimetric quasigeoid model and GNSS/levelling
Abstract : This study is devoted to the determination of a high resolution gravimetric geoid model for Uganda based on the optimal combination of terrestrial and satellite gravity anomalies using the method of Least Squares Modification of Stokes’ formula with additive corrections. Specifically the study investigates the current status of the existing Uganda Vertical Network relative to the requirements of a modern height datum and includes a detailed evaluation and validation of terrestrial gravity data, several digital elevation models and some recent global geopotential models. READ MORE
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9. Making Maps and Keeping Logs : Quantum Gravity from Classical Viewpoints
Abstract : This thesis explores three different aspects of quantum gravity. First we study D3-brane black holes in Calabi-Yau compactifications of type IIB string theory. Using the OSV conjecture and a relation between topological strings and matrix models we show that some black holes have a matrix model description. READ MORE
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10. Essays on African Growth, Productivity, and Trade
Abstract : The thesis comprises an introductory chapter and four research papers. The introductory chapter provides a brief overview of recent economic growth performance in Africa, places the individual papers into a coherent context, summarizes the main findings, and discusses their relevance for economic policy. READ MORE