[petsc-dev] Nedelec elements in PETSc

[Matthew Knepley]

On Mon, Mar 24, 2014 at 12:03 PM, Matthew Knepley <knepley at gmail.com> wrote:

> On Mon, Mar 24, 2014 at 11:41 AM, Stefano Zampini <
> stefano.zampini at gmail.com> wrote:
>
>> Matt,
>>
>> I wish to test PCBDDC with maxwell equations in H(curl). Can you tell me
>> how far are the actual implementation of PetscFe and PetscSpace to
>> implement lowest order nedelec elements and linear functionals evaluation?
>>
>
> The easiest thing to do is look at the implementation in FIAT first and
> see what they did. I am attaching
> the relevant chapter from the FEniCS book. I would use Nedelec of the 2nd
> kind since then you can
> use plain old polynomial P spaces. You just have to code up the dual
> space, which is just a bunch of
> quadrature rules over edges and faces.
>

Here is the chapter.

   Matt


> The big pain will be that it has vector degrees of freedom, which I have
> not tested yet. You need to transform
> the input vectors before doing the integral on the reference element. I
> can help if you get stuck.
>
>   Thanks,
>
>     Matt
>
>
>> best,
>> --
>> Stefano
>>
>
>
>
> --
> 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
>



-- 
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
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