Geodesic
Conjugacy equivalence relation on subgroups
Alessandro Andretta1 ; Riccardo Camerlo1 ; Greg Hjorth2
1 Dipartimento di Matematica Università di Torino via Carlo Alberto 10 10123 Torino, Italy
2 Department of Mathematics University of California at Los Angeles Los Angeles, CA 900095-1555, U.S.A.
Fundamenta Mathematicae, Tome 167 (2001) no. 3, pp. 189-212.

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

If $G$ is a countable group containing a copy of ${\bf F}_2$ then the conjugacy equivalence relation on subgroups of $G$ attains the maximal possible complexity.
DOI : 10.4064/fm167-3-1
Keywords: countable group containing copy conjugacy equivalence relation subgroups attains maximal possible complexity

Alessandro Andretta 1 ; Riccardo Camerlo 1 ; Greg Hjorth 2

1 Dipartimento di Matematica Università di Torino via Carlo Alberto 10 10123 Torino, Italy
2 Department of Mathematics University of California at Los Angeles Los Angeles, CA 900095-1555, U.S.A. 
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Alessandro Andretta; Riccardo Camerlo; Greg Hjorth. Conjugacy equivalence relation on subgroups. Fundamenta Mathematicae, Tome 167 (2001) no. 3, pp. 189-212. doi : 10.4064/fm167-3-1. http://geodesic.mathdoc.fr/articles/10.4064/fm167-3-1/

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