We study the centraliser of locally compact group extensions of ergodic probability preserving transformations. New methods establishing ergodicity of group extensions are introduced, and new examples of squashable and non-coalescent group extensions are constructed.
@article{bwmeta1.element.bwnjournal-article-fmv157i2p99bwm,
author = {Jon Aaronson and Mariusz Lema\'nczyk and Dalibor Voln\'y},
title = {A cut salad of cocycles},
journal = {Fundamenta Mathematicae},
volume = {158},
year = {1998},
pages = {99-119},
zbl = {0966.28010},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv157i2p99bwm}
}
Aaronson, Jon; Lemańczyk, Mariusz; Volný, Dalibor. A cut salad of cocycles. Fundamenta Mathematicae, Tome 158 (1998) pp. 99-119. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv157i2p99bwm/
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