JGD_Franz/Franz10

Cohomology of various rings, from Matthias Franz, Univ. Konstanz, Germany
Name Franz10
Group JGD_Franz
Matrix ID 1963
Num Rows 19,588
Num Cols 4,164
Nonzeros 97,508
Pattern Entries 97,508
Kind Combinatorial Problem
Symmetric No
Date 2008
Author M. Franz
Editor J.-G. Dumas
Structural Rank 4,164
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 1.743560e+01
Minimum Singular Value 1.373531e-15
Condition Number 1.269399e+16
Rank 3,545
sprank(A)-rank(A) 619
Null Space Dimension 619
Full Numerical Rank? no
Download Singular Values MATLAB
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Notes
Cohomology of various rings, from Matthias Franz, Univ. Konstanz, Germany
From Jean-Guillaume Dumas' Sparse Integer Matrix Collection,             
http://ljk.imag.fr/membres/Jean-Guillaume.Dumas/simc.html                
                                                                         
Filename in JGD collection: Franz/19588x4164bis