Sökning: "Per-Anders Ivert"

Hittade 2 avhandlingar innehållade orden Per-Anders Ivert.

  1. 1. Multiwavelet analysis on fractals

    Författare :Andreas Brodin; Alf Jonsson; Per-Anders Ivert; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Wavelets; Fractals; Pointwise convergence; Besov spaces; Regularization; MATHEMATICS; MATEMATIK;

    Sammanfattning : This thesis consists of an introduction and a summary, followed by two papers, both of them on the topic of function spaces on fractals. Paper I: Andreas Brodin, Pointwise Convergence of Haar type Wavelets on Self-Similar Sets, Manuscript. LÄS MER

  3. 2. New weighted inequalities with applications to pseudodifferential operators

    Författare :Stefan Eilertsen; Per-Anders Ivert; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Weighted integral inequalities; fractional Laplacian; Dirichlet problem; behavior near the boundary; special functions;

    Sammanfattning : This thesis is devoted to weighted integral inequalities and their applications to the  study of boundary behavior of solutions to Dirichlet's problem for fractional powers of the Laplacian.We obtain a necessary and sufficient condition on μ for the operator (—Δ)μin R 0 , 0 ... LÄS MER