Newman/hep-th

collaboration network, preprints in high-energy physics, www.arxiv.org
Name hep-th
Group Newman
Matrix ID 2398
Num Rows 8,361
Num Cols 8,361
Nonzeros 31,502
Pattern Entries 31,502
Kind Undirected Weighted Graph
Symmetric Yes
Date 2001
Author M. Newman
Editor M. Newman
Structural Rank
Structural Rank Full
Num Dmperm Blocks
Strongly Connect Components 1,332
Num Explicit Zeros 0
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 4.051891e+01
Minimum Singular Value 1.729509e-50
Condition Number 2.342798e+51
Rank 7,101
sprank(A)-rank(A)
Null Space Dimension 1,260
Full Numerical Rank? no
Download Singular Values MATLAB
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Notes 
Network collection from M. Newman                                          
http://www-personal.umich.edu/~mejn/netdata/                               
                                                                           
The grapu hep-th contains the collaboration network of scientists          
posting preprints on the high-energy theory archive at www.arxiv.org,      
1995-1999, as compiled by M. Newman.  The network is weighted, with weights
assigned as described in the original papers.  Please cite, as appropriate,
one or more of:                                                            
                                                                           
  M. E. J. Newman, The structure of scientific collaboration networks,     
  Proc. Natl. Acad. Sci. USA 98, 404-409 (2001).                           
                                                                           
  M. E. J. Newman, Scientific collaboration networks: I. Network           
  construction and fundamental results, Phys. Rev. E 64, 016131 (2001).    
                                                                           
  M. E. J. Newman, Scientific collaboration networks: II. Shortest paths,  
  weighted networks, and centrality, Phys. Rev. E 64, 016132 (2001).