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MixedCovarianceOperator#5026

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JHopeCollins merged 3 commits intomainfrom
JHopeCollins/mixed-covariance
Apr 14, 2026
Merged

MixedCovarianceOperator#5026
JHopeCollins merged 3 commits intomainfrom
JHopeCollins/mixed-covariance

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For a mixed space it is unlikely you will want the same covariance operator on all components.
MixedCovarianceOperator is a lets you stitch together a covariance operator on each component into a simple block-diagonal covariance operator.

There is a small bugfix to the diffusion_form to let the covariance operators work with Gusto because CellSize doesn't work with immersed meshes (e.g. a sphere).

@JHopeCollins JHopeCollins self-assigned this Apr 13, 2026
connorjward
connorjward previously approved these changes Apr 13, 2026
@JHopeCollins JHopeCollins enabled auto-merge (squash) April 14, 2026 08:54
@JHopeCollins JHopeCollins merged commit 0ff44d3 into main Apr 14, 2026
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@JHopeCollins JHopeCollins deleted the JHopeCollins/mixed-covariance branch April 14, 2026 09:45
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2 participants