Sökning: "numerical relativity"

Visar resultat 6 - 10 av 10 avhandlingar innehållade orden numerical relativity.

  1. 6. Compact Relativistic Matter Shells with Massless and Charged Particles

    Författare :Maximilian Thaller; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Spherical Symmetry; massless Einstein-Vlasov system; Einstein-Vlasov-Maxwell system; Static Solutions; Vlasov matter; General Relativity; Einstein-Vlasov-Maxwell system;

    Sammanfattning : The Vlasov model is a matter model that is widely used in physics. In the context of astrophysics and cosmology it describes an ensemble of self gravitating, collisionless particles. These particles can be interpreted as for example ions, stars, or galaxies. LÄS MER

  3. 7. Perfectly matched layers for second order wave equations

    Författare :Kenneth Duru; Gunilla Kreiss; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Sammanfattning : Numerical simulation of propagating waves in unbounded spatial domains is a challenge common to many branches of engineering and applied mathematics. Perfectly matched layers (PML) are a novel technique for simulating the absorption of waves in open domains. LÄS MER

  4. 8. Gravitational collapse in bimetric gravity

    Författare :Marcus Högås; Edvard Mörtsell; Tomi Koivisto; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bimetric gravity; bigravity; modified gravity; gravitational collapse; Bimetrisk gravitation; modifierad gravitation; gravitationskollaps; teoretisk fysik; Theoretical Physics;

    Sammanfattning : Einstein’s theory of general relativity has been the prevailing theory of classical gravity for over a century. Its observational consistency is unparalleled. There are however a few (arguably) serious short-comings. LÄS MER

  5. 9. A dynamical systems appoach to relativistic stars and cosmology

    Författare :Niklas Röhr; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

    Sammanfattning : This thesis investigate (i) cold relativistic stellar models, e.g. LÄS MER

  7. 10. Dynamical systems in cosmology and astrophysics

    Författare :Ulf Nilsson; Alan Coley; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; fysik;

    Sammanfattning : General relativity is today an important branch of physics. It has, since its publication at the beginning of this century, changed from being of more mathematical than physical interest to one of the most active experimental fields in physics. LÄS MER