Oberwolfach/rail_20209

Oberwolfach: heat transfer, steel profile cooling
Name rail_20209
Group Oberwolfach
Matrix ID 1443
Num Rows 20,209
Num Cols 20,209
Nonzeros 139,233
Pattern Entries 139,233
Kind Model Reduction Problem
Symmetric Yes
Date 2002
Author P. Benner, J. Saak
Editor E. Rudnyi
Structural Rank 20,209
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 5.587503e-05
Minimum Singular Value 2.383230e-10
Condition Number 2.344509e+05
Rank 20,209
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 A matrix