How are periodic boundaries implemented?
5 months ago by
I am wondering how the periodic boundary conditions are implemented with Dolfin. I know that a dofmap is created with constrained_domains.
Can anyone explain the particulars of the underlying implementation? Af first, I thought the dofs would just be mapped directly from one side to the other, but I suspect that extra care is needed to ensure the system remains well posed.
Community: FEniCS Project
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