Oberwolfach/gyro

Oberwolfach: butterfly gyro
Name gyro
Group Oberwolfach
Matrix ID 1435
Num Rows 17,361
Num Cols 17,361
Nonzeros 1,021,159
Pattern Entries 1,021,159
Kind Model Reduction Problem
Symmetric Yes
Date 2004
Author D. Billger
Editor E. Rudnyi
Structural Rank 17,361
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate yes
Positive Definite yes
Type real
SVD Statistics
Matrix Norm 3.656952e+09
Minimum Singular Value 3.337148e+00
Condition Number 1.095832e+09
Rank 17,361
sprank(A)-rank(A) 0
Null Space Dimension 0
Full Numerical Rank? yes
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
Notes
Primary matrix in this model reduction problem is the Oberwolfach K matrix