is the limit of ergodic functions still ergodic? - MathOverflow most recent 30 from http://mathoverflow.net2013-05-19T10:26:44Zhttp://mathoverflow.net/feeds/question/111473http://www.creativecommons.org/licenses/by-nc/2.5/rdfhttp://mathoverflow.net/questions/111473/is-the-limit-of-ergodic-functions-still-ergodicis the limit of ergodic functions still ergodic?Mostafa2012-11-04T16:36:01Z2012-11-04T16:53:46Z
<p>under what conditions is the limit of a sequence of ergodic functions still ergodic? are there simple counter-examples to this general statement?</p>
http://mathoverflow.net/questions/111473/is-the-limit-of-ergodic-functions-still-ergodic/111477#111477Answer by Pietro Majer for is the limit of ergodic functions still ergodic?Pietro Majer2012-11-04T16:53:46Z2012-11-04T16:53:46Z<p>A rotation $z\mapsto e^{2\pi i\alpha} z$ as a self-map of the unit circle is ergodic wrto the length measure iff $\alpha$ is irrational. So any sequence of irrational numbers converging to a rational number produces a counterexample.</p>