Geodesic
On nonmeasurable selectors of countable group actions
Piotr Zakrzewski1
1 Institute of Mathematics University of Warsaw Banacha 2 02-097 Warszawa, Poland
Fundamenta Mathematicae, Tome 202 (2009) no. 3, pp. 281-294

Voir la notice de l'article provenant de la source Institute of Mathematics Polish Academy of Sciences

Given a set $X$, a countable group $H$ acting on it and a $\sigma $-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 $m$.
DOI : 10.4064/fm202-3-5
Keywords: given set countable group acting sigma finite h invariant measure study conditions which imply each selector h orbits nonmeasurable respect h invariant extension

Piotr Zakrzewski 1

1 Institute of Mathematics University of Warsaw Banacha 2 02-097 Warszawa, Poland 
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Piotr Zakrzewski. On nonmeasurable selectors of countable group actions. Fundamenta Mathematicae, Tome 202 (2009) no. 3, pp. 281-294. doi: 10.4064/fm202-3-5

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