On nonmeasurable selectors of countable group actions
Piotr Zakrzewski
Fundamenta Mathematicae, Tome 205 (2009), p. 281-294 / Harvested from The Polish Digital Mathematics Library
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Given a set X, a countable group H acting on it and a σ-finite H-invariant measure m on X, we study conditions which imply that each selector of H-orbits is nonmeasurable with respect to any H-invariant extension of m.

Publié le : 2009-01-01
EUDML-ID : urn:eudml:doc:283325 
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     year = {2009},
     pages = {281-294},
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Piotr Zakrzewski. On nonmeasurable selectors of countable group actions. Fundamenta Mathematicae, Tome 205 (2009) pp. 281-294. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-fm202-3-5/