Frank Bauer

  1. Applying Lepskij-Balancing in Practice.

    Authors: Frank Bauer
    Subjects: Numerical Analysis
    Abstract

    In a stochastic noise setting the Lepskij balancing principle for choosing
    the regularization parameter in the regularization of inverse problems is
    depending on a parameter $\tau$ which in the currently known proofs is
    depending on the unknown noise level of the input data. However, in practice
    this parameter seems to be obsolete.

    We will present an explanation for this behavior by using a stochastic model
    for noise and initial data. Furthermore, we will prove that a small
    modification of the algorithm also improves the performance of the method, in
    both speed and accuracy.

  2. Estimates for the largest eigenvalue of the normalized Laplace operator of a graph.

    Authors: Juergen Jost, Frank Bauer
    Subjects: Combinatorics
    Abstract

    We derive bounds for the largest eigenvalue of the normalized Laplace
    operator of a graph from below and above.

  3. Estimates for the largest eigenvalue of the normalized Laplace operator of a graph.

    Authors: Juergen Jost, Frank Bauer
    Subjects: Combinatorics
    Abstract

    We derive bounds for the largest eigenvalue of the normalized Laplace
    operator of a graph from below and above.

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