On Thu, Aug 25, 2016 at 3:38 PM, Boris Boutkov <boris...@buffalo.edu> wrote:
> Hm - uniform refinement, yes. Are the boundary nodes on the outside edges > of refined elements not considered to be hanging nodes? Apologies if I'm > misusing the term. > Hanging nodes to me means "must be constrained to be compatible with a coarser neighbor", which isn't possible on the boundary. I'm not sure what's causing the assert for you, we'll probably need Roy to comment on the different ways of constraining element matrices, but again, for uniform refinement I would not expect there to be *any* constraints. -- John
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