How to use Finite Element Exterior Calculus with FEniCS?
This is a cross-post of a question I recently asked about the Exterior package of FEniCS. Perhaps DOLFIN is the more appropriate context in which to ask my question?
I am interested in using Finite Element Exterior Calculus (FEEC) in problems involving Dirac operators. For a recent talk, see http://
I have seen that the exterior package implements some aspects of FEEC https:/
My question is, how do I put together a numerical example of the FEEC approach to mixed finite elements using FEniCS? Firstly, using mixed finite elements for the Laplacian as per the Arnold Falk and Winther papers (2006 and 2010), and secondly, using the specific variational formulation of my joint work with Ari Stern, as per my talk referenced above.
Also, I have bought a copy of the FEniCS book. Is there anything useful in there in relation to implementing numerical examples of these two variational formulations?
I think that my problem may be that the FEEC elements are defined within FEniCS, but not the operators. In particular, where do I find the definition of the exterior derivative as an operator, and if it does not exist, how do I write the definition?
See also https:/
Is this really a question for Doug Arnold?
All the best, Paul
http://
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