Matrix properties
number of rows	4,941
number of columns	4,941
nonzeros	13,188
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	symmetric
type	binary
structure	symmetric
Cholesky candidate?	no
positive definite?	no

author	P. Tsaparas
editor	V. Batagelj
date	2006
kind	undirected graph
2D/3D problem?	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/.                                
------------------------------------------------------------------------------
 US power grid - unweighted network                                           
 from Panayiotis Tsaparas:                                                    
   http://www.cs.helsinki.fi/u/tsaparas/MACN2006/data-code.html               
 adapted for Pajek, V. Batagelj, March 19, 2006                               
   0 -> 4941                                                                  

SVD-based statistics:
norm(A)	7.48305
min(svd(A))	6.34037e-19
cond(A)	1.18022e+19
rank(A)	4,348
null space dimension	593
full numerical rank?	no
singular value gap	3.91356e+12

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.