Sökning: "principal bundles"

Hittade 3 avhandlingar innehållade orden principal bundles.

  1. 1. Jet bundles and Weierstrass points

    Författare :Fredrik Andréasson; KTH; []
    Nyckelord :Weierstrasspunkter; Weierstrass; Principala; Principal; Jets;

    Sammanfattning : .... LÄS MER

  3. 2. Ga-actions on Complex Affine Threefolds

    Författare :Isac Hedén; Heinz Fieseler; Lucy Moser-Jauslin; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Complex affine varieties; algebraic group actions of C^ and C^*; locally nilpotent derivations; graded algebras; principal bundles; Russell s hypersurface;

    Sammanfattning : This  thesis  consists  of two papers  and  a summary.  The  papers  both  deal with  affine algebraic complex  varieties,  and  in particular such  varieties  in dimension  three  that have a non-trivial action  of one of the  one-dimensional  algebraic  groups  Ga   :=  (C, +) and  Gm  :=  (C*, ·). LÄS MER

  4. 3. Maximally Supersymmetric Models in Four and Six Dimensions

    Författare :Fredrik Ohlsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Taub-NUT space; Flat connections; Topologically non-trivial connections; 0 theory; Maximal supersymmetry; 2; Circle fibrations; Yang-Mills theory;

    Sammanfattning : We consider two examples of maximally supersymmetric models; the N=4 Yang-Mills theory in four dimensions and the (2,0) theory in six dimensions. The first part of the thesis serves as an introduction to the topics covered in the appended research papers, and begins with a self-contained discussion of principal fibre bundles and symplectic geometry. LÄS MER