[petsc-dev] FFT of multi-component system

[Matthew Knepley]

I have a 12-component system, and want the FFT of each component, so
something like

  FFT \otimes I

You could almost do this with KAIJ, but the FFT matrix is not AIJ. Is there
another nice way to do this?

  Thanks,

     Matt

-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener

https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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