Search for dissertations about: "Matematiska Institutionen."

Showing result 1 - 5 of 729 swedish dissertations containing the words Matematiska Institutionen..

  2. 1. Some problems in the theory of quadratic forms

    Author : Lars Arnér; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  4. 2. On polyharmonic continuation by reflection formulas

    Author : Lars Nystedt; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  5. 3. Lindström quantifiers and higher-order notions on finite structures

    Author : Anders Andersson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Finite model theory; generalized quantifiers; higher-order quantifiers and operators; bijective Ehrenfeucht-Fraïssé games; quantifying over quantifiers; isomorphism quantifiers; MATEMATIK; MATHEMATICS; MATEMATIK; matematisk logik; Mathematical Logic;

    Abstract : The expressive power of first-order logic is very limited on finite structures. One important way to obtain stronger logics is to add Lindström quantifiers, and another is to add higher-order quantification. We investigate two different ways of combing the two approaches. READ MORE

  6. 4. Random railways and cycles in random regular graphs

    Author : Hans Garmo; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Random railway; connectivity number; random regular graph; long cycles; asymptotic distribution. 1991 Mathematics Subject Classification. Primary 60F05; 60C05; 05C38; 05C80; 05C40; 05C45; MATEMATIK; MATHEMATICS; MATEMATIK; matematisk statistik; Mathematical Statistics;

    Abstract : In a cubic multigraph certain restrictions on the paths are made to define what is called a railway. Due to these restrictions a special kind of connectivity is defined. As the number of vertices tends to infinity, the asymptotic probability of obtaining an, in this sense, connected random cubic multigraph is shown to be 1/3. READ MORE

  7. 5. Nonlinear elliptic problems with boundary blow-up

    Author : Jerk Matero; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Boundary blow-up; NTA domain; fractal; p-Laplaceoperator; Mange-Ampère operator; viscosity solution; mean curvature flow; gradient estimate; Fefferman s equation; superdiffusion; entire solution; maximum principle; Primary 35J65; MATEMATIK; MATHEMATICS; MATEMATIK; matematik; Mathematics;

    Abstract : A classical problem in differential geometry is the prescribed curvature problemin a bounded domain, where the task is to conformally deform the Euclidean metric to another complete Riemannian metric with a prescribed curvature function.If this function is negative, the problem is equivalent to solving a nonlinear elliptic partial differential equation with boundary blow-up. READ MORE