Sökning: "General Relativity"

Visar resultat 1 - 5 av 107 avhandlingar innehållade orden General Relativity.

  1. 1. Perturbative Methods in General Relativity

    Författare :Daniel Eriksson; Michael Bradley; Gert Brodin; Lászlo Árpád Gergely; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; General relativity; perturbation theory; photon-photon scattering; cosmology; FRW models with cosmological constant; Bianchi type V; slowly rotating stars; Hartle formalism; Physics; Fysik;

    Sammanfattning : Einstein's theory of general relativity is a cornerstone in the process of gaining increased understanding about problems of gravitational nature. It can be applied to problems on the huge length scales of cosmology and as far as we know it does not break down before the Planck scale is approached. LÄS MER

  3. 2. Stellar Models in General Relativity

    Författare :Lars Samuelsson; Kjell Rosquist; Brandon Carter; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; General relativity; compact objects; neutron stars; Physics; Fysik;

    Sammanfattning : Neutron stars are some of the most fascinating objects in Nature. Essentially all aspects of physics seems to be represented inside them. Their cores are likely to contain deconfined quarks, hyperons and other exotic phases of matter in which the strong interaction is the dominant force. LÄS MER

  4. 3. Cosmological Models and Singularities in General Relativity

    Författare :Patrik Sandin; Claes Uggla; Alan Coley; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; general relativity; Bianchi cosmology; singularities; dynamical systems; Fuchsian methods; Hamiltonian methods; Theory of relativity; gravitation; Relativitetsteori; gravitation; Physics; Fysik;

    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. 4. Extensions of general relativity : scalar tensor theory, topology of space-time and supergravity

    Författare :Ulf Lindström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This report together with Papers 1—11 constitute a dissertation on the subjects of Scalar Tensor Theories, Topology of Space-Time and Supergravity. These three areas are briefly introduced for providing a background to the work in 1—11. A general discussion of motivations for modifications of the Einstein theory is also offered. . LÄS MER

  7. 5. Studies in general relativity : post-Newtonian approximation, invariant description of geometries and supergravity

    Författare :Anders Karlhede; Stockholms universitet; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER