MHD3200B: Alfven Spectra in Magnetohydrodynamics

from set MHD, from the NEP Collection

From generalized eigenvalue problem Ax=(lambda)Bx. This is matrix B; matrix A is MHD3200A from MHD set.

Download as

Compressed MatrixMarket format file: mhd3200b.mtx.gz (94990 bytes)
Compressed Harwell-Boeing format file: mhd3200b.rua.gz (99087 bytes)

Visualizations

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Structure Plot	City Plot
	3D Interactive City Plot
	[ VRML Version 2, gzipped ] 568892 bytes

Matrix Statistics

Size	Type
3200 x 3200, 18316 entries	real symmetric indefinite
Nonzeros
total diagonal below diagonal above diagonal A-A' 18316 3200 7558 7558 0
Column Data	Row Data
Average nonzeros per column : 5.7 Standard deviation : 2 index nonzeros longest 22 10 shortest 1 1	Average nonzeros per row : 5.7 Standard deviation : 2 index nonzeros longest 22 10 shortest 1 1
Bandwidths	Profile Storage
lower 19 upper 19 average |i-j| 9.2 std.dev. 7.5	min max ave. std.dev. lower bandwidth 0 18 16 1.4 upper bandwidth 0 18 16 1.4 Symmetric skyline storage requirement:51341
Heaviest diagonals
offset from main 0 -16 16 -1 1 -15 15 -17 17 -2 nonzeros 3200 2187 2187 1790 1790 1592 1592 794 794 399 accumulated percent 17.47 29.41 41.35 51.12 60.90 69.59 78.28 82.62 86.95 89.13 Top 10 out of 19 nonvoid diagonals.
Conditioning
Frobenius norm 5.2 condition number (est.) 2.02e+13 2-norm (est.) 2.2 diagonal dominance no

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Last change in this page: Wed Sep 22 13:37:26 US/Eastern 2004 [Comments: ]