Essays about: "tetrad"

Found 5 essays containing the word tetrad.

  1. 1. Spacetime as a Hamiltonian Orbit and Geroch's Theorem on the Existence of Fermions

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Viktor Bergstedt; [2020]
    Keywords : 3 1; ADM; black hole; canonical quantization; Cauchy surface; causality; differential geometry; Einstein-Hilbert action; general relativity; Geroch; globally hyperbolic; Hamilton s equations; numerical relativity; parallelizable; SL 2; C ; spacetime; spinor; spin structure; SO 1; 3 ; Stiefel-Whitney class; tetrad; topology;

    Abstract : Over a century since its inception, general relativity continues to lie at the heart of some of the most researched topics in theoretical physics. It seems likely that the coveted solutions to problems like quantum gravity are to be found in an extension of general relativity, one which may only be visible in an alternate formulation of the theory. READ MORE

  3. 2. Molecular characterization of soil-borne viruses infecting sugar beet in Europe and USA

    University essay from SLU/Department of Plant Biology (from 140101)

    Author : Efstratia Poimenopoulou; [2017]
    Keywords : beet necrotic yellow vein virus; beet soil-borne mosaic virus; beet soil-borne virus; beet virus Q; benyvirus; PCR; Polymyxa betae; pomovirus; RNA virus;

    Abstract : Beet necrotic yellow vein virus (BNYVV, Benyvirus) is the causal agent of rhizomania disease. BNYVV and Beet soil-borne mosaic virus (BSBMV, Benyvirus) share high similarity in their genome organisation. READ MORE

  4. 3. Fallots tetrad hos hund och människa : embryologi, genetik och diagnostik

    University essay from SLU/Dept. of Anatomy, Physiology and Biochemistry

    Author : Emma Palmér; [2016]
    Keywords : Fallots tetrad; hund; embryonalutveckling; medfödda hjärtfel; tetralogy of Fallot; canine; embryonic development; congenital heart disease;

    Abstract : Hos människa är anomalier i hjärtat bland de vanligaste medfödda missbildningarna. Även hos hund är medfödda missbildningar i hjärtat relativt vanliga men prevalensen skiljer sig både mellan renrasiga hundar och korsningar samt mellan olika raser. Fallots tetrad (TOF) är en av missbildningarna som kan ses i hjärtat. READ MORE

  5. 4. Non-isotropic Cosmology in 1+3-formalism

    University essay from Linköpings universitet/Matematiska institutionen; Linköpings universitet/Tekniska högskolan

    Author : Johan Jönsson; [2014]
    Keywords : Non-isotropic cosmology; Einstein; Relativity; Bianchi Type I; 1 3-covariant formalism;

    Abstract : Cosmology is an attempt to mathematically describe the behaviour of the universe, the most commonly used models are the Friedmann-Lemaître-Robertson-Walker solutions. These models seem to be accurate for an old universe, which is homogeneous with low anisotropy. READ MORE

  6. 5. Gravitational Wave Interaction in a Vlasov Plasma

    University essay from Institutionen för fysik

    Author : Oskar Janson; [2013]
    Keywords : gravitational waves; general relativity; plasma; physics; vlasov;

    Abstract : Gravitational waves are predicted by Einstein’s general theory of relativity and have so far only been indirectly detected. The first direct detection should however only be a matter of time, with observatories across the world working hard to detect them. READ MORE