Sökning: "integral formula"

Visar resultat 6 - 10 av 34 avhandlingar innehållade orden integral formula.

  1. 6. On path integral localization and the Laplacian

    Författare :Topi Kärki; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical physics; Teoretisk fysik; Physics; Fysik; Theoretical Physics; teoretisk fysik;

    Sammanfattning : In this thesis, we develop path integral localization methods that are familiar from topological field theory: the integral over the infinite dimensional integration domain depends only on local data around some finite dimensional subdomain.We introduce a new localization principle that unifies BRST localization, the non-Abelian localization principle and the conformal generalization of the Duistermaat-Heckman integration formula. LÄS MER

  3. 7. Some Applications of Integral Formulas in Several Complex Variables

    Författare :Jörgen Boo; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The thesis gives three examples of how integral formulas can be used in complex analysis. We say that a set S in Cn is quadratically convex if through any point in its complement there is a quadratic hypersurface that does not intersect S. LÄS MER

  4. 8. Some Applications of Integral Formulas in Several Complex Variables

    Författare :Jörgen Boo; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The thesis gives three examples of how integral formulas can be used in complex analysis. We say that a set S in Cn is quadratically convex if through any point in its complement there is a quadratic hypersurface that does not intersect S. LÄS MER

  5. 9. Inversion of circular averages and application of backprojection methods to radar imaging

    Författare :Stefan Nilsson; Linköpings universitet; []
    Nyckelord :inverse problem; backprojection; tomography; integral geometry;

    Sammanfattning : In this report we study two mathematical inverse problems concerning the determination of a function from spherical averages, which appear in certain radar applications. The first inverse problem consists of determining a function from its spherical averages over all circles with center on a straight line and with arbitrary radius. LÄS MER

  7. 10. Toric varieties and residues

    Författare :Alexey Shchuplev; Mikael Passare; Alekos Vidras; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; toric variety; residue; residue current; integral representation; MATHEMATICS; MATEMATIK; matematik; Mathematics;

    Sammanfattning : The multidimensional residue theory as well as the theory of integral representations for holomorphic functions is a very powerful tool in complex analysis. The computation of integrals, solving algebraic or differential equations is usually reduced to some residue integral. LÄS MER