On 7/19/24 14:10, Sean Johnson wrote:

I integrating by parts on the phi * grad a. First time gets it into weak form. Then a second time gets it back into the original equation and into strong form as I understand it. Is this misunderstood?

That's at least unusual, to integrate twice. I've never seen that done.

Best
 W.

--
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Wolfgang Bangerth          email:                 bange...@colostate.edu
                           www: http://www.math.colostate.edu/~bangerth/


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