Matrix properties
number of rows	8,361
number of columns	8,361
nonzeros	31,502
# strongly connected comp.	1,332
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	symmetric
type	real
structure	symmetric
Cholesky candidate?	no
positive definite?	no

author	M. Newman
editor	M. Newman
date	2001
kind	undirected weighted graph
2D/3D problem?	no

Additional fields	size and type
nodename	full 8361-by-24

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).       

SVD-based statistics:
norm(A)	40.5189
min(svd(A))	1.72951e-50
cond(A)	2.3428e+51
rank(A)	7,101
null space dimension	1,260
full numerical rank?	no
singular value gap	1.55908e+06

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

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.