The notion of C¹-stably positively expansive differentiable maps on closed manifolds is introduced, and it is proved that a differentiable map f is C¹-stably positively expansive if and only if f is expanding. Furthermore, for such maps, the ε-time dependent stability is shown. As a result, every expanding map is ε-time dependent stable.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-ba52-2-10, author = {Kazuhiro Sakai}, title = {C$^1$-Stably Positively Expansive Maps}, journal = {Bulletin of the Polish Academy of Sciences. Mathematics}, volume = {52}, year = {2004}, pages = {197-209}, zbl = {1098.37029}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ba52-2-10} }
Kazuhiro Sakai. C¹-Stably Positively Expansive Maps. Bulletin of the Polish Academy of Sciences. Mathematics, Tome 52 (2004) pp. 197-209. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ba52-2-10/