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Allow expressions with submeshes#4140

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jorgensd wants to merge 16 commits intomainfrom
dokken/submesh-expression
Open

Allow expressions with submeshes#4140
jorgensd wants to merge 16 commits intomainfrom
dokken/submesh-expression

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@jorgensd jorgensd commented Apr 1, 2026

With submesh support, it is quite common that one want to evaluate an expression that uses quantities from both the parent and submesh.

This PR extends expression to be able to support:

  • Submesh of codim 0
  • Submesh of codim 1 (one sided facet expressions)

Requires: FEniCS/ffcx#828

@jorgensd jorgensd marked this pull request as ready for review April 1, 2026 11:44
@jorgensd jorgensd added the enhancement New feature or request label Apr 1, 2026
@jorgensd jorgensd requested a review from jpdean April 1, 2026 12:37
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