{
    matrix_id: '1508',
    name: 'Lederberg',
    group: 'Pajek',
    description: 'Pajek network: Lederberg citation network',
    author: 'E. Garfield',
    editor: 'V. Batagelj',
    date: '2002',
    kind: 'directed multigraph',
    problem_2D_or_3D: '0',
    num_rows: '8843',
    num_cols: '8843',
    nonzeros: '41601',
    num_explicit_zeros: '0',
    num_strongly_connected_components: '8781',
    pattern_symmetry: '0.003',
    numeric_symmetry: '0.003',
    rb_type: 'integer',
    structure: 'unsymmetric',
    cholesky_candidate: 'no',
    positive_definite: 'no',
    notes: '------------------------------------------------------------------------------
Pajek network converted to sparse adjacency matrix for inclusion in UF sparse 
matrix collection, Tim Davis.  For Pajek datasets, See V. Batagelj & A. Mrvar,
http://vlado.fmf.uni-lj.si/pub/networks/data/.                                
------------------------------------------------------------------------------
 Articles by and citing J Lederberg, 1945-2002, Wed Jul 31 13:40:22 2002      
',
    aux_fields: 'pubyear: full 8843-by-1
gcs: full 8843-by-1
nodename: full 8843-by-23
',    norm: '3.484511e+01',
    min_singular_value: '0',
    condition_number: 'Inf',
    svd_rank: '4170',
    null_space_dimension: '4673',
    full_numerical_rank: 'no',
    svd_gap: '247421154055.298340',
    image_files: 'Lederberg.png,Lederberg_scc.png,Lederberg_svd.png,Lederberg_APlusAT_graph.gif,Lederberg_graph.gif,',
}
