We prove that a non-flat S-unimodal map satisfying a weak summability condition has exponential return time statistics on intervals around a.e. point. Moreover we prove that the convergence to the entropy in the Ornstein-Weiss formula enjoys normal fluctuations.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-fm176-1-6, author = {H. Bruin and S. Vaienti}, title = {Return time statistics for unimodal maps}, journal = {Fundamenta Mathematicae}, volume = {177}, year = {2003}, pages = {77-94}, zbl = {1082.37037}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-fm176-1-6} }
H. Bruin; S. Vaienti. Return time statistics for unimodal maps. Fundamenta Mathematicae, Tome 177 (2003) pp. 77-94. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-fm176-1-6/