JGD_Homology/n3c6-b7
Simplicial complexes from Homology from Volkmar Welker.
| Name | 
n3c6-b7 | 
| Group | 
JGD_Homology | 
| Matrix ID | 
2104 | 
| 
Num Rows
 | 
6,435 | 
| 
Num Cols
 | 
6,435 | 
| 
Nonzeros
 | 
51,480 | 
| 
Pattern Entries
 | 
51,480 | 
| 
Kind
 | 
Combinatorial Problem | 
| 
Symmetric
 | 
No | 
| 
Date
 | 
2008 | 
| 
Author
 | 
V. Welker | 
| 
Editor
 | 
J.-G. Dumas | 
 
 
| Structural Rank | 
6,435 | 
| Structural Rank Full | 
true | 
| 
Num Dmperm Blocks
 | 
1 | 
| 
Strongly Connect Components
 | 
1 | 
| 
Num Explicit Zeros
 | 
0 | 
| 
Pattern Symmetry
 | 
100% | 
| 
Numeric Symmetry
 | 
53.3% | 
| 
Cholesky Candidate
 | 
no | 
| 
Positive Definite
 | 
no | 
| 
Type
 | 
integer | 
 
| SVD Statistics | 
| Matrix Norm | 
3.872983e+00 | 
| Minimum Singular Value | 
7.756466e-203 | 
| Condition Number | 
4.993232e+202
 | 
| Rank | 
3,432 | 
| sprank(A)-rank(A) | 
3,003 | 
| Null Space Dimension | 
3,003 | 
| Full Numerical Rank? | 
no | 
| Download Singular Values | 
MATLAB
 | 
 
 
| Download | 
MATLAB
Rutherford Boeing
Matrix Market
 | 
| Notes | 
Simplicial complexes from Homology from Volkmar Welker.     
From Jean-Guillaume Dumas' Sparse Integer Matrix Collection,
http://ljk.imag.fr/membres/Jean-Guillaume.Dumas/simc.html   
                                                            
http://www.mathematik.uni-marburg.de/~welker/               
                                                            
Filename in JGD collection: Homology/n3c6.b7.6435x6435.sms
 
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