Quartic $L^p$-convergence of cubic Riemannian splines

15 Dec 2020 · Hanne Hardering, Benedikt Wirth ·

We prove quartic convergence of cubic spline interpolation for curves into Riemannian manifolds as the grid size of the interpolation grid tends to zero. In contrast to cubic spline interpolation in Euclidean space, where this result is classical, the interpolation operator is no longer linear. Still, concepts from the linear setting may be generalized to the Riemannian case, where we try to use intrinsic Riemannian formulations and avoid charts as much as possible.

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Quartic $L^p$-convergence of cubic Riemannian splines

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