Oberwolfach/piston

Oberwolfach: axi-symmetryic infinite el.
Name piston
Group Oberwolfach
Matrix ID 1441
Num Rows 2,025
Num Cols 2,025
Nonzeros 100,015
Pattern Entries 100,015
Kind Model Reduction Problem
Symmetric No
Date 2006
Author K. Meerbergen
Editor E. Rudnyi
Structural Rank 2,025
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 100%
Numeric Symmetry 3.3%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 5.094381e+03
Minimum Singular Value 9.538262e-07
Condition Number 5.340995e+09
Rank 2,025
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