Sökning: "Partial Differential Equations"

Visar resultat 1 - 5 av 186 avhandlingar innehållade orden Partial Differential Equations.

  1. 1. Infinite dimensional holomorphy in the ring of formal power series : partial differential operators

    Författare :Henrik Petersson; Växjö universitet.; [2001]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Infinite dimensional holomorphy; Formal power series; Fourier-Borel transform; Paley-Wiener theorem; Fischer decomposition; Fischer pair; Fock space; Cauchy-Problem; Kergin operator; PDE-preserving; Pseudo-differential operators.; MATHEMATICS; MATEMATIK;

    Sammanfattning : We study holomorphy in the ring of formal power series in an infinite number of variables. Thus we restrict our study to (infinite dimensional) holomorphy on sequence spaces and we show that we obtain a rich theory without requiring any topological structure on the domain space. We make a comprehensive PDO-study for the spaces under consideration. LÄS MER

  2. 2. Topics in analytic theory of partial differential equations

    Detta är en avhandling från Stockholm : Matematiska institutionen

    Författare :Sergei Chulkov; Stockholms universitet.; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; partial differential equations; MATHEMATICS Algebra; geometry and mathematical analysis; MATEMATIK Algebra; geometri och analys;

    Sammanfattning : The thesis consists of three papers I, II III devoted to some topics in analytic theory of partial differential equations. The main paper is II. In this paper we study a version of the classical problem on the convergence of formal solutions of systems of partial differential equations. LÄS MER

  3. 3. Differential Equations with Constraints

    Detta är en avhandling från Centre for Mathematical Sciences, Lund University

    Författare :Olivier Verdier; Lund University.; Lunds universitet.; [2009]

    Sammanfattning : We study various differential equations subject to constraints. In the first part we study a partial differential equation, Burgers equation, subject to time-periodicity constraint. The forcing term is time-periodic and may be highly irregular. LÄS MER

  4. 4. Selected Topics in Partial Differential Equations

    Detta är en avhandling från Uppsala : Department of Mathematics

    Författare :Mattias Enstedt; Uppsala universitet.; [2011]

    Sammanfattning : This Ph.D. thesis consists of five papers and an introduction to the main topics of the thesis. In Paper I we give an abstract criteria for existence of multiple solutions to nonlinear coupled equations involving magnetic Schrödinger operators. LÄS MER

  5. 5. On the discretization in time and space of parabolic integro-differential equations

    Detta är en avhandling från Göteborg : Chalmers University of Technology

    Författare :Nai-Ying Zhang; Göteborgs universitet.; Gothenburg University.; [1990]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; initial-boundary value problem; parabolic; partial; integro-differential equation; regularity; nonsmooth initial data; finite element method; fully discrete; Galerkin approximation; stability; error estimate; quadrature;

    Sammanfattning : .... LÄS MER