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MHD416B: 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 B; matrix A is MHD416A from MHD set.


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Visualizations

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Matrix Statistics

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Size Type
416 x 416, 2312 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
2312 416 948 948 0
Column Data Row Data
Average nonzeros per column : 5.6
Standard deviation : 2

indexnonzeros
longest22 10
shortest1 1

Average nonzeros per row : 5.6
Standard deviation : 2

indexnonzeros
longest22 10
shortest1 1

Bandwidths Profile Storage
lower19 upper19
average |i-j|9.1 std.dev.7.5
minmaxave.std.dev.
lower bandwidth0 18 16 3.2
upper bandwidth0 18 16 3.2

Symmetric skyline storage requirement:6449

Heaviest diagonals
offset from main0 -16 16 -1 1 -15 15 -17 17 -2
nonzeros416 273 273 226 226 200 200 98 98 51
accumulated percent17.9929.8041.6151.3861.1669.8178.4682.7086.9489.14

Top 10 out of 19 nonvoid diagonals.
Conditioning
Frobenius norm5.2 condition number (est.)5.1e+09
2-norm (est.)2.2 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: ]