Paper: epubs.siam.org/doi/10.1137/.... Code: github.com/dnguyend/par...
17.11.2025 19:34
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Paper: epubs.siam.org/doi/10.1137/.... Code: github.com/dnguyend/par...
We also "explain" the closed-form geodesic formula of that paper. It arises from an isometry to a "small" Stiefel manifold, and from a quotient of a "small" copy of SO(p) equipped with a naturally reductive metric. The picture could be generalized to other matrix Lie groups.
Recently published! A paper with @stefanhsommer.bsky.social ! A closed-form and efficient formula for Parallel transport on Stiefel manifold, a problem of interest in Riemannian optimization since Edelman et. al. epubs.siam.org/doi/10.1137/....
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