Comments (2)
This is really a FIAT issue. Feel free to contribute Lagrange and or Discontinuous Lagrange elements to FIAT with better locations.
If you're going to the effort of doing it, the interior equispaced lattice is still not a great choice. Presumably the right choice is some sort of triangular GL set.
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You might consider Toby's recursively-defined simplex nodes that are symmetric and not equispaced. Especially for the tet they have excellent Lebesgue constants compared to the alternatives: https://epubs.siam.org/doi/pdf/10.1137/20M1321802
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Related Issues (20)
- BUG: Solving the Stokes equations defined with TrialFunction returns an error HOT 1
- BUG: Greater error than expected in quadrilateral GLL elements HOT 4
- Compute norm of assembled derivative HOT 5
- "Too many indices for sum factorisation!" for calculating radius on extruded CubedSphereMesh. HOT 1
- INSTALL: ImportError when running firedrake-update on Linux HOT 2
- INSTALL: Linux (Ubuntu 22.04.4 LTS) HOT 12
- Tests for `to_petsc_local_numbering`
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- Zenodo release request
- Error on interpolation using --petsc-int-type int64 HOT 1
- BUG: Adjoint inconsistency with self-assignment via projection HOT 1
- BUG: Many tests fail with 64-bit indices
- Zenodo release please. HOT 1
- BUG: mesh.locate_cell not returning what is expected for points outside the mesh (--petsc-int-type=int64) HOT 2
- Interpolation on two different meshes doesn't work on parallel
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