Search for dissertations about: "nonlinear singular"

Showing result 1 - 5 of 20 swedish dissertations containing the words nonlinear singular.

  2. 1. On space-time means for solutions of nonlinear Klein-Gordon equations

    Author : Håkan Blomqvist; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nonlinear Klein-Gordon equation; linear Klein-Gordon equation; asymptotic properties; rate of decay; boundedness of space-time means; properties inherited from the corresponding linear case; nonlinear Volterra integral inequality with singular kernel; nonlinear Klein-Gordon equation;

    Abstract : .... READ MORE

  4. 2. On risk-coherent input design and Bayesian methods for nonlinear system identification

    Author : Patricio E. Valenzuela Pacheco; Cristian Rojas; Daniel Rivera; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; System identification; input design; Bayesian methods; nonlinear models; risk theory; Electrical Engineering; Elektro- och systemteknik;

    Abstract : System identification deals with the estimation of mathematical models from experimental data. As mathematical models are built for specific purposes, ensuring that the estimated model represents the system with sufficient accuracy is a relevant aspect in system identification. READ MORE

  5. 3. Topics in Nonlinear Elliptic Differential Equations

    Author : Shoyeb Waliullah; Andrzej Szulkin; Thomas Bartsch; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Concentration-compactness principle; critical Sobolev exponent; symmetric solutions of elliptic equations; degenerate elliptic equation; Nehari manifold; Caffarelli-Kohn-Nirenberg inequality; infinitely many solutions; MATHEMATICS; MATEMATIK; Mathematics; matematik;

    Abstract : In this thesis we examine the existence of solutions to nonlinear elliptic partial differential equations via variational methods.In Paper I we consider the existence of constrained minimizers which correspond to solutions of equations involving the iterated Laplacian, the iterated p-Laplacian and the critical Sobolev exponent. READ MORE

  6. 4. Computation of Parameters in some Mathematical Models

    Author : Gunilla Wikström; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; inverse problems; parameter estimation; systems of ordinary differential equations; short-cut methods; separable nonlinear least squares problems; Matlab toolbox for nonlinear least squares ; linear systems of equations; pseudoinverse solution; perturbation theory; singular value decomposition; experimental error analysis; Computer science; Datavetenskap;

    Abstract : In computational science it is common to describe dynamic systems by mathematical models in forms of differential or integral equations. These models may contain parameters that have to be computed for the model to be complete. READ MORE

  7. 5. Simple Layer Potentials on Lipschitz Surfaces: An Asymptotic Approach

    Author : Johan Thim; Vladimir Kozlov; Bengt Ove Turesson; Martin Costabel; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Singular integrals; Lipschitz surfaces; Mathematical analysis; Analys;

    Abstract : This work is devoted to the equationwhere S is the graph of a Lipschitz function φ on RN with small Lipschitz constant, and dS is the Euclidian surface measure. The integral in the left-hand side is referred to as a simple layer potential and f is a given function. READ MORE