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Differentiation of external operators via <code>ufl.diff</code>

Status: Open.

#456 In FEniCS/ufl;

· a-latyshev opened on Dec 17, 2025

Add <code>ufl.reference_grad</code>

Status: Open.

#450 In FEniCS/ufl;

· mscroggs opened on Dec 8, 2025

High-order differentiation of forms with external operators

Status: Open.

#449 In FEniCS/ufl;

· a-latyshev opened on Nov 28, 2025

Why has the class FiniteElement been removed?

question

Status: Open.

#445 In FEniCS/ufl;

· dr-robertk opened on Nov 13, 2025

Make tests use fenicsx-refs.yml

Status: Open.

#432 In FEniCS/ufl;

· jhale opened on Oct 20, 2025

Building the documentation produces many warnings and some errors

Status: Open.

#415 In FEniCS/ufl;

· connorjward opened on Sep 4, 2025

Edge case: fd.dx works but fd.par_loop fails when fd.dx subdomain_id is a single-element tuple

Status: Open.

#411 In FEniCS/ufl;

· anilbeycorintis opened on Aug 26, 2025

supporting built-in collections consistently in fd.dx()

Status: Open.

#407 In FEniCS/ufl;

· anilbeycorintis opened on Aug 18, 2025

call function treats empty-tuples and None and no-argument type differently

Status: Open.

#405 In FEniCS/ufl;

· anilbeycorintis opened on Aug 18, 2025

Empty form does not have arguments/arity

Status: Open.

#396 In FEniCS/ufl;

· jorgensd opened on Jul 16, 2025

Adjoints of coarguments behave inconsistently

Status: Open.

#395 In FEniCS/ufl;

· dham opened on Jul 16, 2025

Allow meshes to have multiple cell types

Status: Open.

#394 In FEniCS/ufl;

· mscroggs opened on Jul 10, 2025