Sökning: "Per Sundqvist"

Hittade 4 avhandlingar innehållade orden Per Sundqvist.

  1. 1. Preconditioners and fundamental solutions

    Detta är en avhandling från Uppsala University

    Författare :Per Sundqvist; Uppsala universitet.; Uppsala universitet.; [2003]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Numerical Analysis; Numerisk analys;

    Sammanfattning : New preconditioning techniques for the iterative solution of systems of equations arising from discretizations of partial differential equations are considered. Fundamental solutions, both of differential and difference operators, are used as kernels in discrete, truncated convolution operators. LÄS MER

  2. 2. Numerical Computations with Fundamental Solutions

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Per Sundqvist; Uppsala universitet.; Uppsala universitet.; [2005]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fundamental solution; partial differential equation; partial difference equation; iterative method; preconditioner; boundary method; Numerical Analysis; Numerisk analys;

    Sammanfattning : Two solution strategies for large, sparse, and structured algebraic systems of equations are considered. The first strategy is to construct efficient preconditioners for iterative solvers. The second is to reduce the sparse algebraic system to a smaller, dense system of equations, which are called the boundary summation equations. LÄS MER

  3. 3. Fine motor timing ability - A study of syllable repetition and finger tapping in adults with developmental stuttering or Parkinson's disease compared with healthy adults

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Maria Sundqvist; Göteborgs universitet.; Gothenburg University.; [2016]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; motor timing; synchronization; finger tapping; syllable repetition; Developmental stuttering; Parkinson s disease;

    Sammanfattning : Aim and methods: The overall aim of this thesis was to explore the fine motor timing ability as manifested by speech motor and fine hand motor activity in persons with developmental stuttering or Parkinson’s disease, and in healthy adults. A test method for systematic comparison between speech motor timing and fine hand motor control was developed. LÄS MER

  4. 4. Beyond an instrumental approach to religion and development Challenges for church-based healthcare in Tanzania

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Josephine Sundqvist; Uppsala universitet.; [2017]
    Nyckelord :HUMANIORA; HUMANITIES; Religion; development; church organisations; public private partnerships; healthcare; Sociology of Religion; Religionssociologi;

    Sammanfattning : This dissertation serves as a contribution to the larger ongoing debate on the role of religion in development in an effort to move beyond an instrumental approach. The aim is to study the role of religious agents in development through the prism of contractual partnerships between church organisations and the Tanzanian state in healthcare delivery. LÄS MER