The efficacy of estimation for influence coefficients in wavelet basis

A.A.R. Metselaar, C.R. Traas

    Research output: Book/ReportReportOther research output

    18 Downloads (Pure)

    Abstract

    We use wavelets for the discretisation of an integral equation. Upper bounds are derived for elements of the resulting matrix. These upper bounds are used to compute only those elements that may exceed a certain threshold. Numerical experiments are presented in which this manner of computing a sparse matrix is compared with computing the matrix in nodal basis, followed by a transformation and, for most comparisons, thresholding.
    Original languageUndefined
    Place of PublicationEnschede
    PublisherUniversity of Twente, Department of Applied Mathematics
    Publication statusPublished - 1999

    Publication series

    Name
    PublisherDepartment of Applied Mathematics, University of Twente
    No.1502
    ISSN (Print)0169-2690

    Keywords

    • MSC-65R20
    • EWI-3322
    • IR-65690
    • MSC-45EXX

    Cite this

    Metselaar, A. A. R., & Traas, C. R. (1999). The efficacy of estimation for influence coefficients in wavelet basis. Enschede: University of Twente, Department of Applied Mathematics.
    Metselaar, A.A.R. ; Traas, C.R. / The efficacy of estimation for influence coefficients in wavelet basis. Enschede : University of Twente, Department of Applied Mathematics, 1999.
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    abstract = "We use wavelets for the discretisation of an integral equation. Upper bounds are derived for elements of the resulting matrix. These upper bounds are used to compute only those elements that may exceed a certain threshold. Numerical experiments are presented in which this manner of computing a sparse matrix is compared with computing the matrix in nodal basis, followed by a transformation and, for most comparisons, thresholding.",
    keywords = "MSC-65R20, EWI-3322, IR-65690, MSC-45EXX",
    author = "A.A.R. Metselaar and C.R. Traas",
    note = "Imported from MEMORANDA",
    year = "1999",
    language = "Undefined",
    publisher = "University of Twente, Department of Applied Mathematics",
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    }

    Metselaar, AAR & Traas, CR 1999, The efficacy of estimation for influence coefficients in wavelet basis. University of Twente, Department of Applied Mathematics, Enschede.

    The efficacy of estimation for influence coefficients in wavelet basis. / Metselaar, A.A.R.; Traas, C.R.

    Enschede : University of Twente, Department of Applied Mathematics, 1999.

    Research output: Book/ReportReportOther research output

    TY - BOOK

    T1 - The efficacy of estimation for influence coefficients in wavelet basis

    AU - Metselaar, A.A.R.

    AU - Traas, C.R.

    N1 - Imported from MEMORANDA

    PY - 1999

    Y1 - 1999

    N2 - We use wavelets for the discretisation of an integral equation. Upper bounds are derived for elements of the resulting matrix. These upper bounds are used to compute only those elements that may exceed a certain threshold. Numerical experiments are presented in which this manner of computing a sparse matrix is compared with computing the matrix in nodal basis, followed by a transformation and, for most comparisons, thresholding.

    AB - We use wavelets for the discretisation of an integral equation. Upper bounds are derived for elements of the resulting matrix. These upper bounds are used to compute only those elements that may exceed a certain threshold. Numerical experiments are presented in which this manner of computing a sparse matrix is compared with computing the matrix in nodal basis, followed by a transformation and, for most comparisons, thresholding.

    KW - MSC-65R20

    KW - EWI-3322

    KW - IR-65690

    KW - MSC-45EXX

    M3 - Report

    BT - The efficacy of estimation for influence coefficients in wavelet basis

    PB - University of Twente, Department of Applied Mathematics

    CY - Enschede

    ER -

    Metselaar AAR, Traas CR. The efficacy of estimation for influence coefficients in wavelet basis. Enschede: University of Twente, Department of Applied Mathematics, 1999.