Search for dissertations about: "weyl"

Showing result 1 - 5 of 47 swedish dissertations containing the word weyl.

  2. 1. Generalized Weyl algebras and elliptic quantum groups

    Author : Jonas T. Hartwig; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Generalized Weyl algebra; weight module; quantum Weyl algebra; ambiskew polynomial ring; unitarizable module; Hopf algebra; dynamical quantum group; Hopf algebra;

    Abstract : .... READ MORE

  4. 2. Modules and Hopf structures for (twisted) generalized Weyl algebras

    Author : Jonas T. Hartwig; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Generalized Weyl algebra; weight module; guantum Weyl algebra; ambiskew polynomial ring; Hopf algebra; quantum group; guantum Weyl algebra;

    Abstract : .... READ MORE

  5. 3. Multipole moments of axisymmetric spacetimes

    Author : Thomas Bäckdahl; Magnus Herberthson; Brian Edgar; Kjell Rosquist; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; multipole moments; axisymmetry; spacetimes; prescribed; solutions; static; stationary; Kerr; Weyl; Ernst; Theory of relativity; gravitation; Relativitetsteori; gravitation;

    Abstract : In this thesis we study multipole moments of axisymmetric spacetimes. Using the recursive definition of the multipole moments of Geroch and Hansen we develop a method for computing all multipole moments of a stationary axisymmetric spacetime without the use of a recursion. READ MORE

  6. 4. Linear response theory: from black holes to Weyl systems and back

    Author : Jorge Laraña Aragón; Bo Sundborg; Lárus Thorlacius; Emil J. Bergholtz; Ulf Gran; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Linear response; Black holes; Thermalization; Holography; Weyl systems; Non-Hermitian systems; Theoretical Physics; teoretisk fysik;

    Abstract : Linear response theory is a powerful calculation tool in quantum field theory. We apply this framework to a variety of models originating from distinct areas in theoretical physics and for different reasons. READ MORE

  7. 5. Generalized Titchmarsh-Weyl functions and super singular perturbations

    Author : Christoph Neuner; Annemarie Luger; Pavel Kurasov; B. Malcolm Brown; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Generalized Titchmarsh-Weyl function; Super singular perturbations; Strongly singular potentials;

    Abstract : In this thesis we study certain singular Sturm-Liouville differential expressions from an operator theoretic point of view.In particular we are interested in expressions that involve strongly singular potentials as introduced by Gesztesy and Zinchenko. READ MORE