Papers › Equi-affine minimal-degree moving frames for polynomial curves

Equi-affine minimal-degree moving frames for polynomial curves

9 Feb 2024arXiv:2402.06610links table onlyarchive 2025-07-28

Hoon Hong, Irina A. Kogan

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We develop a theory and an algorithm for constructing minimal-degree polynomial moving frames for polynomial curves in an affine space. The algorithm is equivariant under volume-preserving affine transformations of the ambient space and the parameter shifts. We show that any matrix-completion algorithm can be turned into an equivariant moving frame algorithm via an equivariantization procedure that we develop. We prove that if a matrix-completion algorithm is of minimal degree then so is the resulting equivariant moving frame algorithm. We propose a novel minimal-degree matrix-completion algorithm, complementing the existing body of literature on this topic.

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