Search for dissertations about: "class group"

Showing result 21 - 25 of 437 swedish dissertations containing the words class group.

  2. 21. Admissible transformations and the group classification of Schrödinger equations

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

  4. 22. Class, Culture, and Conflict in the Edwardian Book Inscription : A Multimodal Ethnohistorical Approach

    Author : Lauren Alex O’Hagan; England Cardiff Cardiff University; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES;

    Abstract : This study draws on theories and methodologies from the fields of multimodality, ethnography and book history studiesto explore class conflict and social mobility in Edwardian Britain (1901-1914). Using a dataset of 2,998 book inscriptions, this work investigates the types of inscriptions present in books bought and exchanged in Edwardian Britain; the ways in which inscriptive practices varied according to location, gender, age, social class and occupation; the material and semiotic features of inscriptions; and their communicative and performative purposes. READ MORE

  5. 23. A Study of Group 13-Nitride Atomic Layer Deposition : Computational Chemistry Modelling of Atomistic Deposition Processes

    Author : Karl Rönnby; Lars Ojamäe; Henrik Pedersen; Simon Elliott; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The crystalline solids aluminium nitride (AlN), gallium nitride (GaN) and indium nitride (InN), together with their alloys, are of huge interest in the semiconductor industry. Their bandgaps span an extensive range from 6.0 eV for AlN to 0.7 eV for InN, with GaN in between at a bandgap of 3. READ MORE

  6. 24. Group classification of linear Schrödinger equations by the algebraic method

    Author : Célestin Kurujyibwami; Peter Basarab-Horwath; Roman Popovych; Rita Tracinà; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis is devoted to the group classification of linear Schrödinger equations. The study of Lie symmetries of such equations was initiated more than 40 years ago using the classical Lie infinitesimal method for specific types of real-valued potentials. READ MORE

  7. 25. The Historical Origins of the Mortality Gradient : Socioeconomic Inequalities in Adult Mortality over Two Centuries in Sweden

    Author : Enrico Debiasi; Centrum för ekonomisk demografi; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; socioeconomic status; social class; income; adult cause-specific mortality; Sweden; long-term development;

    Abstract : Mortality differentials by socioeconomic status (SES) are among the most pervasive facts of contemporary demography. However, while the mortality gradient by income, class and education is well-established for the period after 1970, evidence regarding the origins of the gradient is still scarce. READ MORE