dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Tue, Mar 17, 2009 at 10:50:29AM +0000, Nuno David Lopes wrote:
> I didn't understand...
> 
> On Monday 16 March 2009, Anders Logg wrote:
> 
> > You are defining the boundary condition dbc for V1 which is the second
> 
> > subset of V.
> 
> that's what I want to do.
> 
> > This will lead to an offset (size of V0) being used when
> 
> > applying the boundary condition which won't work on the forms a_p, Lp
> 
> > since they are not defined on V (but on V1).
> 
> Do I have to pass the dimensions in an explicit form?
> 
> Is that what you mean?
> 
> How to do that?

Sub spaces should only be used for setting boundary conditions for
mixed systems of which they are subsets. If you just want a simple
space then just instantiate one directly (not as a subspace of another
space).

-- 
Anders

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