On the convex hull of a space curve
Algebraic Geometry
2011-01-19 v3 Computational Geometry
Abstract
The boundary of the convex hull of a compact algebraic curve in real 3-space defines a real algebraic surface. For general curves, that boundary surface is reducible, consisting of tritangent planes and a scroll of stationary bisecants. We express the degree of this surface in terms of the degree, genus and singularities of the curve. We present algorithms for computing their defining polynomials, and we exhibit a wide range of examples.
Keywords
Cite
@article{arxiv.0912.2986,
title = {On the convex hull of a space curve},
author = {Kristian Ranestad and Bernd Sturmfels},
journal= {arXiv preprint arXiv:0912.2986},
year = {2011}
}
Comments
19 pages, 4 figures, minor changes