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MHD416A: Alfven Spectra in Magnetohydrodynamics

from set MHD, from the NEP Collection

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From generalized eigenvalue problem Ax=(lambda)Bx. This is matrix A; matrix B is MHD416B from MHD set.


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Visualizations

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Matrix Statistics

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Size Type
416 x 416, 8562 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
8562 161 3918 4483 8106
Column Data Row Data
Average nonzeros per column : 21
Standard deviation : 12

indexnonzeros
longest45 38
shortest1 1

Average nonzeros per row : 21
Standard deviation : 6.3

indexnonzeros
longest42 33
shortest1 1

Bandwidths Profile Storage
lower30 upper30
average |i-j|11 std.dev.7.3
minmaxave.std.dev.
lower bandwidth0 29 21 5.5
upper bandwidth0 29 21 5.6

Nonsymmetric skyline storage 17032

Heaviest diagonals
offset from main6 5 2 4 -6 3 -10 -5 7 -2
nonzeros304 276 255 254 252 250 225 225 225 204
accumulated percent 3.55 6.77 9.7512.7215.6618.5821.2123.8426.4728.85

Top 10 out of 58 nonvoid diagonals.
Conditioning
Frobenius norm2.9e+03 condition number (est.)2.4e+25
2-norm (est.)2.5e+03 diagonal dominanceno


Set Information

Set MHD
Source: A. Booten, M.N. Kooper, H.A. van der Vorst, S. Poedts and J.P. Goedbloed University of Utrecht, the Netherlands
Discipline:Plasma physics


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