JGD_Homology/ch3-3-b2 graph

Matrix: JGD_Homology/ch3-3-b2

Description: Simplicial complexes from Homology from Volkmar Welker.

  • UF Sparse Matrix Collection
  • Matrix group: JGD_Homology
  • Click here for a description of the JGD_Homology group.
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  • download as a MATLAB mat-file, file size: 780 bytes. Use UFget(2009) or UFget('JGD_Homology/ch3-3-b2') in MATLAB.
  • download in Matrix Market format
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    JGD_Homology/ch3-3-b2

    scc of JGD_Homology/ch3-3-b2

    Matrix properties
    number of rows6
    number of columns18
    nonzeros18
    structural full rank?yes
    structural rank6
    # of blocks from dmperm1
    # strongly connected comp.6
    entries not in dmperm blocks0
    explicit zero entries0
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    typeinteger
    structurerectangular
    Cholesky candidate?no
    positive definite?no

    authorV. Welker
    editorJ.-G. Dumas
    date2008
    kindcombinatorial problem
    2D/3D problem?no

    Notes:

    Simplicial complexes from Homology from Volkmar Welker.     
From Jean-Guillaume Dumas' Sparse Integer Matrix Collection,
http://ljk.imag.fr/membres/Jean-Guillaume.Dumas/simc.html   
                                                            
http://www.mathematik.uni-marburg.de/~welker/               
                                                            
Filename in JGD collection: Homology/ch3-3.b2.6x18.sms

    Ordering statistics:AMD METIS
    nnz(V) for QR, upper bound nnz(L) for LU18 18
    nnz(R) for QR, upper bound nnz(U) for LU6 6

    Maintained by Tim Davis, last updated 05-Nov-2008.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.
    Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.