JGD_Groebner/f855_mat9_I

Groebner basis from Jean-Charles Fauge`res
Name f855_mat9_I
Group JGD_Groebner
Matrix ID 2003
Num Rows 2,456
Num Cols 2,511
Nonzeros 171,214
Pattern Entries 171,214
Kind Combinatorial Problem
Symmetric No
Date 2008
Author J.-C. Faugeres
Editor J.-G. Dumas
Structural Rank 2,456
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type integer
SVD Statistics
Matrix Norm 5.899028e+06
Minimum Singular Value 1.596918e-12
Condition Number 3.694008e+18
Rank 2,228
sprank(A)-rank(A) 228
Null Space Dimension 228
Full Numerical Rank? no
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
Notes 
Gro"bner basis from Jean-Charles Fauge`res,                 
From Jean-Guillaume Dumas' Sparse Integer Matrix Collection,
http://ljk.imag.fr/membres/Jean-Guillaume.Dumas/simc.html   
                                                            
http://www-calfor.lip6.fr/~jcf/                             
                                                            
Filename in JGD collection: Grobner/f855_mat9.I