GHS_indef/aug2dc

Gould, Hu, Scott: expanded system-2D PDE (CUTEr)
Name aug2dc
Group GHS_indef
Matrix ID 1216
Num Rows 30,200
Num Cols 30,200
Nonzeros 80,000
Pattern Entries 80,000
Kind 2D/3D Problem
Symmetric Yes
Date 1994
Author N. Gould
Editor N. Gould
Structural Rank 20,000
Structural Rank Full false
Num Dmperm Blocks 2
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate no
Positive Definite no
Type integer
SVD Statistics
Matrix Norm 2.828085e+00
Minimum Singular Value 1.157218e-41
Condition Number 2.443865e+41
Rank 20,000
sprank(A)-rank(A) 0
Null Space Dimension 10,200
Full Numerical Rank? no
Download Singular Values MATLAB