Search for dissertations about: "singularities"

Showing result 21 - 25 of 61 swedish dissertations containing the word singularities.

  2. 21. Some special problems in elliptic and parabolic variational inequalities

    Author : Gulchehra Kulieva; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics;

    Abstract : This Licentiate Thesis is devoted above all to the investigation of variational inequalities. Chapter 1 deals with linear elliptic variational inequalities, where the operator is degenerated or singular, which involves the use of some weighted Sobolev spaces. READ MORE

  4. 22. Convexity, Currents, and Lelong numbers

    Author : Aron Lagerberg; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; complex analysis; convex analysis; currents; Lelong numbers; tropical geometry; L^2-estaimtes; Legendre transform; intersection theory; real Monge-Ampere operators; plurisubharmonic functions; integrability index; L^2-estaimtes;

    Abstract : This thesis treats different aspects of convexity, both real and complex. On the real side, we study convexity in relation with certain currents. On the complex side, we study the singularities of plurisubharmonic functions. READ MORE

  5. 23. Adaptive Finite Element Methods for Div-Curl Problems

    Author : Rickard Bergström; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In this thesis, we develop and apply finite element methods to problems of div-curl type, mainly from applications in electromagnetics. In particular, we focus on least-squares formulations for problems with singularities, edge elements in eddy current computations, and the implementation of the finite element method. READ MORE

  6. 24. Tackling the Uncertainties of Event Generators

    Author : Leif Gellersen; Teoretisk partikelfysik - Geonomgår omorganisation; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; QCD; Phenomenology; Parton Showers; Matrix Element Merging; Tuning;

    Abstract : This thesis is composed of four papers, which concern Monte Carlo event generators for high energy particle physics. Precise predictions of the outcome of particle collisions are important for the exploration of the Standard Model of particle physics at collider experiments like the LHC at CERN. READ MORE

  7. 25. Subanalytic sets in the calculus of variation

    Author : Martin Tamm; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The purpose of this thesis is to develop a theory for certain extreme value problems, depending analytically on some set of parameters. In particular it aims at a description of the singularities of the extreme value functions. In this context, a central role is played by the concept of subanalytic functions (i.e. READ MORE