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<div>Hello @ all,</div>
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<div>I am using the DUNE FEM assembly to create the FEM Matrix for a simple Laplace equation. The mesh consists of several blocks, that are connected via 1to1 interface or unstructured interfaces (Abutting1to1 or Abutting). I use the mortar method in order
to handle the connections between these blocks. </div>
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<div>I am now facing the challenge, that I have to handle the crosspoints of the mortar interface (the points/edges where multiple mortar interfaces meet). I know the theory that the Dual Langrange elements have to be modified for elements that contain such
crosspoints. Before I start to implement these modifications myself, I wanted to ask if this is already available in DUNE?</div>
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<div>Thanks</div>
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<div>Max Sagebaum</div>
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