On Tue, Dec 15, 2009 at 10:55:38AM +0100, Artur Poźniak wrote: > Hello, > > I'd like to implement periodic boundary conditions and for this I need equal > displacement constraint. Is some routine for Lagrange multipliers already > implemented? > Sorry if the answer is too obvious but I couldn't find the dolfin's reference. > > thanks > Artur Pozniak
No, there's no built-in support. You will have to try to do it manually. You could also try enforcing the periodicity strongly using the PeriodicBC class. -- Anders
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