Ralf Zimmermann

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Papers (3)

1. A polar-factor retraction on the symplectic Stiefel manifold with closed-form inverse math.NA · 2026 · author #1
2. A geometric note on subspace updates and orthogonal matrix decompositions under rank-one modifications math.NA · 2017 · author #1
3. A matrix-algebraic algorithm for the Riemannian logarithm on the Stiefel manifold under the canonical metric math.NA · 2016 · author #1

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