Search for dissertations about: "eigenvalue problems"

Showing result 11 - 15 of 50 swedish dissertations containing the words eigenvalue problems.

  2. 11. On nonlinear eigenvalue problems and critical point theory for indefinite functionals

    Author : Li Yongqing; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Matematisk Analys;

    Abstract : .... READ MORE

  4. 12. Advanced Monte Carlo Methods in Reactor Physics, Eigenvalue and Steady State Problems

    Author : Jan Dufek; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; Kärnfysik;

    Abstract : .... READ MORE

  5. 13. Numerical algorithms for nonlinear eigenproblems with eigenvector nonlinearities

    Author : Parikshit Upadhyaya; Elias Jarlebring; Robert Corless; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; numerical algorithms; nonlinear eigenproblems; multiparameter eigenvalue problem; nonlinear eigenvalue problem; eigenvector nonlinearities; nepv; scf; p-laplacian; quasi-newton; Numerical Analysis; Numerisk analys;

    Abstract : Eigenproblems and their nonlinear generalizations appear as important problems in a wide variety of fields, ranging from quantum chemistry and vibration analysis to macroeconomics and data science. Hence, the development and analysis of numerical algorithms to solve such problems has a broad multiplicative effect on our ability to answer several crucial scientific questions. READ MORE

  6. 14. Semi-Toeplitz preconditioning for linearized boundary layer problems

    Author : Samuel Sundberg; Lina von Sydow; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Numerical Analysis; Numerisk analys;

    Abstract : We have defined and analyzed a semi-Toeplitz preconditioner for time-dependent and steady-state convection-diffusion problems. Analytic expressions for the eigenvalues of the preconditioned systems are obtained. READ MORE

  7. 15. The Dirac Equation: Numerical and Asymptotic Analysis

    Author : Hasan Almanasreh; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dirac operator; eigenvalue problem; finite element method; spurious eigenvalues; Petrov-Galerkin; cubic Hermite basis functions; stability parameter; meshfree method; $hp$-cloud; intrinsic enrichment; G-convergence; $ Gamma$-convergence; scattering theory; identification; wave operator; stationary approach; Dirac operator;

    Abstract : The thesis consists of three parts, although each part belongs to a specific subject area in mathematics, they are considered as subfields of the perturbation theory. The main objective of the presented work is the study of the Dirac operator; the first part concerns the treatment of the spurious eigenvalues in the computation of the discrete spectrum. READ MORE