Sökning: "ergodic convergence"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden ergodic convergence.

  1. 1. Conditional Subgradient Methods and Ergodic Convergence in Nonsmooth Optimization

    Författare :Ann-Brith Strömberg; Vladimir F. Dem'yanov; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ergodic convergence; nonsmooth optimization; primal convergence; subgradient methods; conditional subgradient; Convex programming; Lagrangean relaxation;

    Sammanfattning : The topic of the thesis is subgradient optimization methods in convex, nonsmooth optimization. These methods are frequently used, especially in the context of Lagrangean relaxation of large scale mathematical programs where they are remarkably often able to quickly identify near-optimal Lagrangean dual solutions. LÄS MER

  3. 2. Spectral Asymptotics in Porous Media

    Författare :Hermann Douanla Yonta; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Homogenization; reiterated homogenization; perforated domains; multiscale perforation; eigenvalue problems; ergodic algebra; algebra with mean value; Gelfand transformation; two-scale convergence; Sigma-convergence; Gelfand transformation;

    Sammanfattning : .... LÄS MER

  4. 3. Optimization of Maintenance Planning for Multi-Component Systems, and Primal-Dual Convergence Characterizations in Convex Optimization

    Författare :Magnus Önnheim; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; subgradient methods; Lagrangian dual; primal recovery; inconsistent convex programs; ergodic sequences; maintenance scheduling; preventive maintenance; deterioration cost; deterioration cost;

    Sammanfattning : This thesis considers two topics within mathematical programming. The first topic is an investigation into the behaviour of primal-dual subgradient algorithms with primal ergodic averaging in the case where it is not known a priori whether the primal program is consistent or not. LÄS MER

  5. 4. Two-scale Convergence and Homogenization of Some Partial Differential Equations

    Författare :Hermann Douanla Yonta; Göteborgs universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Homogenization. Two-scale convergence. Perforated domains. Eigenvalue problem. Ergodic algebra. Algebra with mean value. Gelfand transform. Sigma-convergence. Navier-Stokes equation. Deterministic fissured medium.; Homogenization. Two-scale convergence. Perforated domains. Eigenvalue problem. Ergodic algebra. Algebra with mean value. Gelfand transform. Sigma-convergence. Navier-Stokes equation. Deterministic fissured medium.;

    Sammanfattning : .... LÄS MER

  7. 5. Topics in convex and mixed binary linear optimization

    Författare :Emil Gustavsson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; subgradient methods; Lagrangian dual; recovery of primal solutions; inconsistent convex programs; ergodic sequences; convex optimization; mixed binary linear optimization; maintenance scheduling; preventive maintenance; deterioration cost; inconsistent convex programs;

    Sammanfattning : This thesis concerns theory, algorithms, and applications for two problem classes within the realm of mathematical optimization; convex optimization and mixed binary linear optimization. To the thesis is appended five papers containing its main contributions. LÄS MER