Woess, Wolfgang Fixed sets and free subgroups of groups acting on metric spaces. (English) Zbl 0892.54022 Math. Z. 214, No. 3, 425-439 (1993). MSC: 54H15 60J50 57S99 PDF BibTeX XML Cite \textit{W. Woess}, Math. Z. 214, No. 3, 425--439 (1993; Zbl 0892.54022) Full Text: DOI EuDML
Noskov, G. A. Properties \({\mathcal T}\), \({\mathcal {FA}}\), amenability and discontinuity for groups acting on \(\mathbb{R}\)-trees. (English. Russian original) Zbl 0954.57001 St. Petersbg. Math. J. 5, No. 3, 633-644 (1994); translation from Algebra Anal. 5, No. 3, 238-251 (1993). MSC: 57M07 20E08 43A07 PDF BibTeX XML Cite \textit{G. A. Noskov}, St. Petersbg. Math. J. 5, No. 3, 238--251 (1993; Zbl 0954.57001); translation from Algebra Anal. 5, No. 3, 238--251 (1993)
Pays, Isabelle; Valette, Alain Free subgroups in the automorphism groups of trees. (Sous-groupes libres dans les groupes d’automorphismes d’arbres.) (French) Zbl 0744.20024 Enseign. Math., II. Sér. 37, No. 1-2, 151-174 (1991). Reviewer: F.Herrlich (Karlsruhe) MSC: 20E08 20B27 20E07 PDF BibTeX XML Cite \textit{I. Pays} and \textit{A. Valette}, Enseign. Math. (2) 37, No. 1--2, 151--174 (1991; Zbl 0744.20024)