English

Alexandrov meets Kirszbraun

Differential Geometry 2025-02-12 v3

Abstract

We give a simplified proof of the generalized Kirszbraun theorem for Alexandrov spaces, which is due to Lang and Schroeder. We also discuss related questions, both solved and open.

Cite

@article{arxiv.1012.5636,
  title  = {Alexandrov meets Kirszbraun},
  author = {Stephanie Alexander and Vitali Kapovitch and Anton Petrunin},
  journal= {arXiv preprint arXiv:1012.5636},
  year   = {2025}
}

Comments

21 pages, 5 figures

R2 v1 2026-06-21T17:04:33.066Z