English

The exponential map of a $C^{1,1}$-metric

Differential Geometry 2014-07-01 v3

Abstract

Given a pseudo-Riemannian metric of regularity C1,1C^{1,1} on a smooth manifold, we prove that the corresponding exponential map is a bi-Lipschitz homeomorphism locally around any point. We also establish the existence of totally normal neighborhoods in an appropriate sense. The proofs are based on regularization, combined with methods from comparison geometry.

Keywords

Cite

@article{arxiv.1306.4776,
  title  = {The exponential map of a $C^{1,1}$-metric},
  author = {Michael Kunzinger and Roland Steinbauer and Milena Stojkovic},
  journal= {arXiv preprint arXiv:1306.4776},
  year   = {2014}
}

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