Arenas/email

email interchange network, Univ. of Rovira i Virgili, Tarragona
Name email
Group Arenas
Matrix ID 2408
Num Rows 1,133
Num Cols 1,133
Nonzeros 10,902
Pattern Entries 10,902
Kind Undirected Graph
Symmetric Yes
Date 2003
Author R. Guimera, L. Danon, A. Diaz-Guilera, F. Giralt, A. Arenas
Editor A. Arenas
Structural Rank
Structural Rank Full
Num Dmperm Blocks
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate no
Positive Definite no
Type binary
SVD Statistics
Matrix Norm 2.074700e+01
Minimum Singular Value 5.592451e-19
Condition Number 3.709822e+19
Rank 1,091
sprank(A)-rank(A)
Null Space Dimension 42
Full Numerical Rank? no
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
Notes
Arenas set: email network, Univ. of Rovira i Virgili, Tarragona           
http://deim.urv.cat/~aarenas/data/welcome.htm                             
                                                                          
Network of e-mail interchanges between members of the Univeristy Rovira   
i Virgili (Tarragona).  Data compiled by members of Alex Arenas' group.   
Reference: R. Guimera, L. Danon, A. Diaz-Guilera, F. Giralt and A. Arenas,
Physical Review E , vol. 68, 065103(R), (2003).