We have decided to discontinue the publication of preprints on our preprint server end of 2024. The publication culture within mathematics has changed so much due to the rise of repositories such as ArXiV (www.arxiv.org) that we are encouraging all institute members to make their preprints available there. An institute's repository in its previous form is, therefore, unnecessary. The preprints published to date will remain available here, but we will not add any new preprints here.
MiS Preprint
24/2004
On hyperbolic vectorfields on stratified spaces
Ursula Ludwig
Abstract
The goal of this article is twofold. First, we want to generalize the stable/unstable manifold theorem for a normal hyperbolic invariant set to the situation where we have only Lipschitz conditions instead of $C^1$-smoothness assumptions. This was already claimed in the book of Hirsch/Shub/Pugh but not worked out. We will need the notion of a generalized Jacobian as well as the Implicit Function Theorem with Lipschitz conditions introduced by Clarke. Second, we apply this result to give a good generalization of the notion of a hyperbolic fixed point to a stratified vectorfield on a stratified space.
