Search for dissertations about: "Matematik"

Showing result 1 - 5 of 2755 swedish dissertations containing the word Matematik.

  1. 1. Admissible transformations and the group classification of Schrödinger equations

    Author : Celestin Kurujyibwami; Peter Basarab-Horwath; Roman Popovych; Pontelis Damianou; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : We study admissible transformations and solve group classification problems for various classes of linear and nonlinear Schrödinger equations with an arbitrary number n of space variables.The aim of the thesis is twofold. READ MORE

  2. 2. Random Records and Cuttings in Binary Search Trees

    Author : Cecilia Holmgren; Svante Janson; Anders Martin-Löf; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Discrete mathematics; Diskret matematik; Mathematics; Matematik;

    Abstract : .... READ MORE

  3. 3. On Latin squares and avoidable arrays

    Author : Lina J. Andrén; Roland Häggkvist; Kimmo Eriksson; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Latin square; avoidability; avoidable array; Discrete mathematics; Diskret matematik; Mathematics; matematik;

    Abstract : This thesis consists of the four papers listed below and a survey of the research area. I Lina J. Andrén: Avoiding (m, m, m)-arrays of order n = 2k II Lina J. Andrén: Avoidability of random arrays III Lina J. READ MORE

  4. 4. On some graph coloring problems

    Author : Carl Johan Casselgren; Roland Häggkvist; Svante Linusson; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; List coloring; interval edge coloring; coloring graphs from random lists; biregular graph; avoiding arrays; Latin square; scheduling; Discrete mathematics; Diskret matematik; Mathematics; matematik;

    Abstract : .... READ MORE

  5. 5. Combinatorics and zeros of multivariate polynomials

    Author : Nima Amini; Petter Bränden; Jim Haglund; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics;

    Abstract : This thesis consists of five papers in algebraic and enumerative combinatorics. The objects at the heart of the thesis are combinatorial polynomials in one or more variables. We study their zeros, coefficients and special evaluations. Hyperbolic polynomials may be viewed as multivariate generalizations of real-rooted polynomials in one variable. READ MORE