Matrix: Gaertner/pesa

Description: Structuresymmetric Matrix pesa K. Gaertner ETH Zurich Oct 1996.

Gaertner/pesa graph
(undirected graph drawing)

Gaertner/pesa

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  • Matrix group: Gaertner
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  • download as a MATLAB mat-file, file size: 146 KB. Use UFget(443) or UFget('Gaertner/pesa') in MATLAB.
  • download in Matrix Market format, file size: 239 KB.
  • download in Rutherford/Boeing format, file size: 183 KB.

    Matrix properties
    number of rows11,738
    number of columns11,738
    nonzeros79,566
    # strongly connected comp.1
    explicit zero entries0
    nonzero pattern symmetrysymmetric
    numeric value symmetry 100%
    typeinteger
    structureunsymmetric
    Cholesky candidate?no
    positive definite?no

    authorK. Gaertner
    editorF. Grund
    date2001
    kinddirected weighted graph
    2D/3D problem?no

    SVD-based statistics:
    norm(A)33914
    min(svd(A))0.000792794
    cond(A)4.27779e+07
    rank(A)11,738
    null space dimension0
    full numerical rank?yes

    singular values (MAT file):click here
    SVD method used:s = svd (full (A)) ;
    status:ok

    Gaertner/pesa svd

    For a description of the statistics displayed above, click here.

    Maintained by Tim Davis, last updated 12-Mar-2014.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.
    Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.