Matrix properties
number of rows	40,421
number of columns	40,421
nonzeros	351,382
# strongly connected comp.	1,798
explicit zero entries	4
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	2005
kind	undirected weighted graph
2D/3D problem?	no

Additional fields	size and type
nodename	full 40421-by-25

Notes:

Network collection from M. Newman                                          
http://www-personal.umich.edu/~mejn/netdata/                               
                                                                           
The graph cond-mat-2005 contains an updated version of cond-mat, the       
collaboration network of scientists posting preprints on the condensed     
matter archive at www.arxiv.org.  This version is based on preprints posted
to the archive between January 1, 1995 and March 31, 2005.  The network is 
weighted, with weights assigned as described in M. E. J. Newman,           
Phys. Rev. E 64, 016132 (2001).                                            
                                                                           
These data can be cited (as an updated version of)                         
                                                                           
  M. E. J. Newman, The structure of scientific collaboration networks,     
  Proc. Natl. Acad. Sci. USA 98, 404-409 (2001).                           
                                                                           
Note by Tim Davis:  in the original cond-mat-2005.gml graph from M. Newman 
2 of the edges had an edge weight of "inf".  This value cannot be stored   
in the UF Collection, so they have been replaced with zero.  See           
Problem.Zeros in the MATLAB version, or the explicit zero values in the MM 
and RB file formats.                                                       

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 4 explicit zero entries.

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.