White noise generators and AR covariance operators #4716

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Merged

Feb 5, 2026

firedrake/adjoint/__init__.py

-Original file line number
+Diff line change
@@ Expand Up / @@ -34,6 +34,10 @@ @@
     )
     from firedrake.adjoint.ensemble_reduced_functional import EnsembleReducedFunctional  # noqa F401
     from firedrake.adjoint.transformed_functional import L2RieszMap, L2TransformedFunctional  # noqa: F401
+    from firedrake.adjoint.covariance_operator import (  # noqa F401
+        WhiteNoiseGenerator, AutoregressiveCovariance,
+        PyOP2NoiseBackend, PetscNoiseBackend, VOMNoiseBackend,
+        CovarianceMat, CovariancePC)
     import numpy_adjoint  # noqa F401
     import firedrake.ufl_expr
     import types
@@ Expand Down @@

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