Metrics in the space of curves

A. Yezzi; A. Mennucci

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arXiv · math/0412454

Metrics in the space of curves

A. Yezzi·A. Mennucci

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Abstract

In this paper we study geometries on the manifold of curves. We define a manifold $M$ where objects $c\in M$ are curves, which we parameterize as $c:S^1\to \real^n$ ($n\ge 2$, $S^1$ is the circle). Given a curve $c$, we define the tangent space $T_cM$ of $M$ at $c$ including in it all deformations $h:S^1\to\real^n$ of $c$. We discuss Riemannian and Finsler metrics $F(c,h)$ on this manifold $M$, and in particular the case of the geometric $H^0$ metric $F(c,h)=\int |h|^2ds$ of normal deformations $h$ of $c$; we study the existence of minimal geodesics of $H^0$ under constraints; we moreover propose a conformal version of the $H^0$ metric.

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BibTeX RIS

A. Yezzi, A. Mennucci. 2005-05-25. Metrics in the space of curves. https://arxiv.org/abs/math/0412454

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