Sökning: "Eva Mossberg"

Hittade 2 avhandlingar innehållade orden Eva Mossberg.

  1. 1. Higher order finite difference methods for wave propagation problems

    Detta är en avhandling från Uppsala University

    Författare :Eva Mossberg; Karlstads universitet.; Uppsala universitet.; Uppsala universitet.; [2002]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics; Numerical Analysis; Numerisk analys;

    Sammanfattning : Wave propagation is described by the wave equation, or in the time-periodic case, by the Helmholtz equation. For problems with small wavelengths, high order discretizations must be used to resolve the solution. Two different techniques for finding compact finite difference schemes of high order are studied and compared. LÄS MER

  2. 2. Some numerical and analytical methods for equations of wave propagation and kinetic theory

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Eva Mossberg; Karlstads universitet.; Karlstads universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK; Matematik; Mathematics; wave propagation; finite difference metods high order methods; Landau-Fokker-Planck equation; Monte-Carlo simulations; Boltzmann equation; hard sphere model; eigenvalue problem;

    Sammanfattning : This thesis consists of two different parts, related to two different fields in mathematical physics: wave propagation and kinetic theory of gases. Various mathematical and computational problems for equations from these areas are treated. LÄS MER