On Jun 1, 2011, at 8:28 AM, Jed Brown wrote:
> On Wed, Jun 1, 2011 at 15:38, Derek Gaston <[email protected]> wrote:
> Has anyone done any MMS verification on cubic hermite convergence rates? I
> thought they were supposed to be O(h^4).... but we're only seeing O(h^2) on a
> fairly simple 2D poisson problem with an assumed solution of u=sin(8*pi*x).
>
> Are you using sufficient quadrature for the Hermite basis?
That was actually my first thought as well... so I have our post-doc redoing
the study with a much higher order QRule... we'll see if that yields any
results.
Derek
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