Given a Lipschitz stratification 𝒳 that additionally satisfies condition (δ) of Bekka-Trotman (for instance any Lipschitz stratification of a subanalytic set), we show that for every stratum N of 𝒳 the distance function to N is locally bi-Lipschitz trivial along N. The trivialization is obtained by integration of a Lipschitz vector field.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-ap87-0-17, author = {Adam Parusi\'nski}, title = {Bi-Lipschitz trivialization of the distance function to a stratum of a stratification}, journal = {Annales Polonici Mathematici}, volume = {85}, year = {2005}, pages = {213-218}, zbl = {1090.32016}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ap87-0-17} }
Adam Parusiński. Bi-Lipschitz trivialization of the distance function to a stratum of a stratification. Annales Polonici Mathematici, Tome 85 (2005) pp. 213-218. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ap87-0-17/