Matrix properties
number of rows	332
number of columns	332
nonzeros	4,252
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	symmetric
type	real
structure	symmetric
Cholesky candidate?	no
positive definite?	no

author	US Air
editor	V. Batagelj
date	1997
kind	undirected weighted graph
2D/3D problem?	no

Additional fields	size and type
nodename	full 332-by-30
coord	full 332-by-2

Notes:

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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/.                                
------------------------------------------------------------------------------
The original problem had 3D xyz coordinates, but all values of z were equal   
to 0.5, and have been removed.  This graph has 2D coordinates.                

SVD-based statistics:
norm(A)	4.22683
min(svd(A))	1.74951e-21
cond(A)	2.416e+21
rank(A)	281
null space dimension	51
full numerical rank?	no
singular value gap	2.25289e+09

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.