Sökning: "a posteriori error estimate"

Visar resultat 11 - 15 av 29 avhandlingar innehållade orden a posteriori error estimate.

  1. 11. Adaptive Finite Element Methods for Optimal Control Problems

    Författare :Karin Kraft; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; finite element method; discontinuous Galerkin method; optimal control; a posteriori error estimate; dual weighted residual; adaptive; multilevel algorithm; Newton method; control constraint; variational inequality; vehicle dynamics.;

    Sammanfattning : In this thesis we study the numerical solution of optimal control problems. The problems considered consist of a system of differential equations, the state equations, which are governed by a control variable. The goal is to determine the states and controls which minimize a given cost functional. LÄS MER

  3. 12. Adaptive Finite Element Methods for Optimal Control Problems

    Författare :Karin Kraft; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dual weighted residual; adaptive; Newton method; variational inequality; vehicle dynamics.; multilevel algorithm; discontinuous Galerkin method; a posteriori error estimate; finite element method; optimal control; control constraint;

    Sammanfattning : In this thesis we study the numerical solution of optimal control problems. The problems considered consist of a systemof differential equations, the state equations, which are governed bya control variable. The goal is to determine the states and controls which minimize a given cost functional. LÄS MER

  4. 13. Adaptive Algorithms for Deterministic and Stochastic Differential Equations

    Författare :Kyoung-Sook Moon; KTH; []
    Nyckelord :adaptive mesh refinement algorithm; a posteriori error estimate;

    Sammanfattning : .... LÄS MER

  5. 14. Convergence rates of adaptive algorithms for deterministic and stochastic differential equations

    Författare :Kyoung-Sook Moon; KTH; []
    Nyckelord :adaptive mesh refinement algorithm; computational complexity; a posteriori error estimate; ordinary differential equations; stochastic differential equations;

    Sammanfattning : .... LÄS MER

  7. 15. Adaptive variational multiscale methods

    Författare :Axel Målqvist; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; finite element method; Galerkin; duality; a posteriori error estimation; adaptivity; variational multiscale method; mixed formulation; multi-physics; oil reservoir simulation; finite element method;

    Sammanfattning : In this thesis we present a new adaptive multiscale method for solving elliptic partial differential equations. The method is based on numerical solution of decoupled local fine scale problems on patches. LÄS MER