Search for dissertations about: "Lie group extensions"

Found 4 swedish dissertations containing the words Lie group extensions.

  2. 1. Abelian Extensions, Fractional Loop Group and Quantum Fields

    Author : Pedram Hekmati; Jouko Mickelsson; Christoph Schweigert; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Lie group extensions; Lie conformal algebras; gerbes; twisted K-theory; renormalization; anomalies; D-brane charges; variational complex; Mathematical physics; Matematisk fysik;

    Abstract : This thesis deals with the theory of Lie group extensions, Lie conformal algebras and twisted K-theory, in the context of quantum physics. These structures allow for a mathematically precise description of certain aspects of interacting quantum field theories. READ MORE

  4. 2. Group Extensions, Gerbes and Twisted K-theory

    Author : Pedram Hekmati; Jouko Mickelsson; Jürgen Fuchs; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematical physics; Matematisk fysik;

    Abstract : This thesis reviews the theory of group extensions, gerbes and twisted K-theory. Application to anomalies in gauge theory is briefly discussed. The main results are presented in two appended scientific papers. READ MORE

  5. 3. On Hom-associative Ore Extensions

    Author : Per Bäck; Sergei Silvestrov; Johan Richter; Lars Hellström; Anatoliy Malyarenko; Joakim Arnlind; Mälardalens universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics Applied Mathematics; matematik tillämpad matematik;

    Abstract : In this thesis, we introduce and study hom-associative Ore extensions. These are non-unital, non-associative, non-commutative polynomial rings in which the associativity condition is “twisted” by an additive group homomorphism. READ MORE

  6. 4. Ligand binding and enzyme catalysis studied by molecular dynamics simulations

    Author : Tomas Hansson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; molecular dynamics simulation; free energy; linear response; drug design; empirical valence bond; HIV protease; protein tyrosine phosphatase; Molekylärbiologi; Molecular biology; Molekylärbiologi; molekylärbiologi; Molecular Biology;

    Abstract : Molecular dynamics simulations and free energy calculations can be applied to biomolecular systems to predict ligand binding affinities. Combined with hybrid quantum-classical potential energy surfaces, such computations can also be used to probe enzymatic catalysis mechanisms. READ MORE