Search for dissertations about: "equation"

Showing result 11 - 15 of 1206 swedish dissertations containing the word equation.

  1. 11. Domain Decomposition and Preconditioned Iterative Methods for the Helmholtz Equation

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Elisabeth Larsson; Uppsala universitet.; Uppsala universitet.; [2000]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Helmholtz equation; domain decomposition; preconditioned iterative method; fast transforms; parallelization; Numerical Analysis; Numerisk analys;

    Abstract : New preconditioned iterative solution methods for the Helmholtz equation are constructed. To evaluate the performance of the methods, two-dimensional problems with a waveguide geometry are used as model problems. Second- and fourth-order accurate finite difference discretizations are used. READ MORE

  2. 12. Homogenization of some new mathematical models in lubrication theory

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Afonso Fernando Tsandzana; Luleå tekniska universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; lubrication theory; homogenization theory; Reynolds equation; cavitation; surfaces roughness; Stokes equation; Matematik; Mathematics;

    Abstract : We consider mathematical modeling of thin film flow between two rough surfaces which are in relative motion. For example such flows take place in different kinds of bearings and gears when a lubricant is used to reduce friction and wear between the surfaces. READ MORE

  3. 13. The Dynamic Behavior of Prices and Investment: Financial Constraints and Customer Markets

    University dissertation from Uppsala : Nationalekonomiska institutionen

    Author : Magnus Lundin; Uppsala universitet.; [2003]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Customer Markets; Financial Constraints; Price Equation; Investment Equation; User Cost of Capital; Nationalekonomi; SOCIAL SCIENCES Business and economics Economics; SAMHÄLLSVETENSKAP Ekonomi Nationalekonomi;

    Abstract : Chapter II (with Nils Gottfries and Charlotte Bucht) explores the interaction between prices and investment. We construct a dynamic model of a financially constrained firm making pricing and investment decisions. READ MORE

  4. 14. Mesoscopic thin film superconductors - A computational framework

    University dissertation from Gothenburg : Chalmers tekniska högskola

    Author : Mikael Håkansson; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Riccati equation; quasiclassical theory; simulation; GPU; time-reversal symmetry; CUDA; Eilenberger equation; coherence functions; Superconductivity; computational;

    Abstract : Motivated by experiments on superconductors in the microscopic regime and the realization of small superconducting devices such as qubits, we initiate a computational project in the form of a numerical simulation package to model and predict the behavior of these type of systems. It is a multidisciplinary endeavor in that it employs theory, computational science, software design, and to some extent new visualization techniques. READ MORE

  5. 15. Mathematics teachers' conceptions about equations

    University dissertation from Helsinki : University of Helsinki

    Author : Iiris Attorps; Högskolan i Gävle.; [2006]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; algebra; conception; equation; learning; mathematics teacher; SOCIAL SCIENCES Social sciences Education Subject didactics; SAMHÄLLSVETENSKAP Socialvetenskap Pedagogik Ämnesdidaktik; MATHEMATICS; MATEMATIK;

    Abstract : The aim of this study is to describe and to clarify the mathematics teachers’ subject matter and pedagogical content conceptions about equations. As the basis of these conceptions, the teachers’ experiences of the concept learning of equations from their own school time are described. READ MORE