We study a nonconventional ergodic average for asymptotically abelian weakly mixing C*-dynamical systems, related to a second iteration of Khinchin's recurrence theorem obtained by Bergelson in the measure-theoretic case. A noncommutative recurrence theorem for such systems is obtained as a corollary.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm192-3-3,
author = {Rocco Duvenhage},
title = {Bergelson's theorem for weakly mixing C*-dynamical systems},
journal = {Studia Mathematica},
volume = {192},
year = {2009},
pages = {235-257},
zbl = {1181.46052},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm192-3-3}
}
Rocco Duvenhage. Bergelson's theorem for weakly mixing C*-dynamical systems. Studia Mathematica, Tome 192 (2009) pp. 235-257. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm192-3-3/