Sökning: "anna torstensson"

Hittade 4 avhandlingar innehållade orden anna torstensson.

  1. 1. Everyday life, crime, and fear of crime among adolescents and young adults

    Författare :Alexander Engström; Marie Torstensson Levander; Anna-Karin Ivert; Micael Björk; Anna Dåderman; Vania Ceccato; Malmö universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; adolescents; crime; fear of crime; lifestyle-exposure theory; offending; routine activity theory; smartphone; victimisation; youth; young adults;

    Sammanfattning : Drawing on lifestyle-routine activity theory, this dissertation explores associations between everyday life, crime, and fear of crime among adolescents and young adults. It also examines the operationalisation of the concepts of lifestyle and routine activities, and explores the use of experience methods, via a smartphone application named STUNDA, to collect data about everyday life. LÄS MER

  2. 2. Algorithmic Methods in Combinatorial Algebra

    Författare :Anna Torstensson; Algebra; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; algebraic geometry; field theory; Number Theory; maximal symmetry group; resultant; SAGBI basis; Orthogonal decomposition; algebra; group theory; Talteori; fältteori; algebraisk geometri; gruppteori;

    Sammanfattning : This thesis consists of a collection of articles all using and/or developing algorithmic methods for the investigation of different algebraic structures. Part A concerns orthogonal decompositions of simple Lie algebras. The main result of this part is that the symplectic Lie algebra C3 has no orthogonal decomposition of so called monomial type. LÄS MER

  3. 3. Situational sources of rule-breaking acts : an analytic criminology approach

    Författare :Alberto P. Chrysoulakis; Marie Torstensson Levander; Anna-Karin Ivert; Alfonso Serrano Maíllo; Malmö universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; adolescents; collective efficacy; crime propensity; delinquency; mechanisms; morality; peers; rule-breaking; self-control; situational action theory; time-use; unstructured socialising; Health and society; Hälsa och samhälle;

    Sammanfattning : Criminology has long been divided by mainly focusing on people’s propensities to commit crimes, on the one hand, and environmental characteristics conducive to crime, on the other. Such a division must be bridged to advance knowledge about why some people, but not others, commit rule-breaking acts in some environments but not in others. LÄS MER

  4. 4. Constructive Methods for SAGBI and SAGBI-Gröbner Bases

    Författare :Hans Öfverbeck; Matematik (naturvetenskapliga fakulteten); []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics; elimination; intersection; automata; resultants; noncommutative invariants;

    Sammanfattning : The thesis consists of an introduction and the following four papers: Paper I: Using resultants for SAGBI basis verification in the univariate polynomial ring. Authors: Anna Torstensson, Victor Ufnarovski and Hans Öfverbeck. LÄS MER