We study the relation between transitivity and strong transitivity, introduced by W. Parry, for graph self-maps. We establish that if a graph self-map f is transitive and the set of fixed points of is finite for each k ≥ 1, then f is strongly transitive. As a corollary, if a piecewise monotone graph self-map is transitive, then it is strongly transitive.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-ba53-4-3, author = {Katsuya Yokoi}, title = {Strong Transitivity and Graph Maps}, journal = {Bulletin of the Polish Academy of Sciences. Mathematics}, volume = {53}, year = {2005}, pages = {377-388}, zbl = {1105.37027}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ba53-4-3} }
Katsuya Yokoi. Strong Transitivity and Graph Maps. Bulletin of the Polish Academy of Sciences. Mathematics, Tome 53 (2005) pp. 377-388. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ba53-4-3/