Sökning: "Daniel Bergh"

Hittade 3 avhandlingar innehållade orden Daniel Bergh.

  1. 1. Computations in the Grothendieck Group of Stacks

    Detta är en avhandling från Department of Mathematics, Stockholm University

    Författare :Daniel Bergh; Stockholms universitet.; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; matematik; Mathematics;

    Sammanfattning : Given an algebraic group, one may consider the class of its classifying stackin the Grothendieck group of stacks. This is an invariant studied byEkedahl. For certain connected groups, called the special groups bySerre and Grothendieck, the invariant simply gives the inverse of the class ofthe group itself. LÄS MER

  2. 2. Destackification and Motivic Classes of Stacks

    Detta är en avhandling från Stockholm : Department of Mathematics, Stockholm University

    Författare :Daniel Bergh; Stockholms universitet.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Algebraic geometry; Algebraic stacks; Destackification; Grothendieck ring; Motive; Torus; Classifying stack; matematik; Mathematics;

    Sammanfattning : This thesis consists of three articles treating topics in the theory of algebraic stacks. The first two papers deal with motivic invariants. In the first, we show that the class of the classifying stack BPGLn is the inverse of the class of PGLn in the Grothendieck ring of stacks for n ≤ 3. LÄS MER

  3. 3. Social Relations and Health How do the associations vary across contexts and subgroups of individuals?

    Detta är en avhandling från Karlstad : Karlstad University

    Författare :Daniel Bergh; Karlstads universitet.; [2011]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social Relations; Social Capital; Health; Health Behaviours; School; Adolescents; Sociologi; Sociology;

    Sammanfattning : Objectives: The aim of this thesis is to study the association between social relations and health in different social spheres, and to examine possible interaction effects.Material and Methods: In Paper I, the link between measures of the psychosocial neighbourhood environment, the psychosocial working environment, and psychosomatic health is analyzed by using a subset of data from the survey Life and Health 2000. LÄS MER