English

$h$-Principles for curves and knots of constant torsion

Differential Geometry 2025-10-06 v2

Abstract

We prove that curves of constant torsion satisfy the C1C^1-dense h-principle in the space of immersed curves in Euclidean space. In particular, there exists a knot of constant torsion in each isotopy class. Our methods, which involve convex integration and degree theory, quickly establish these results for curves of constant curvature as well.

Keywords

Cite

@article{arxiv.2410.06027,
  title  = {$h$-Principles for curves and knots of constant torsion},
  author = {Mohammad Ghomi and Matteo Raffaelli},
  journal= {arXiv preprint arXiv:2410.06027},
  year   = {2025}
}

Comments

7 pages, 1 figure; Minor revisions; Accepted for publication in Comment. Math. Helv