Serre, Jean-Pierre [Stillwell, J.] Trees. Transl. from the French by John Stillwell. (English) Zbl 0548.20018 Berlin-Heidelberg-New York: Springer-Verlag. IX, 142 p. DM 48.00; $ 28.40 (1980). See Zbl 0369.20013 for a review of the French original “Arbres, Amalgames, \(\text{SL}_2\)” (1977). Cited in 26 ReviewsCited in 296 Documents MathOverflow Questions: Is property FA of Serre known for \(SL_2(\mathbb{Z}[i])\) and \(SL_2(\mathbb{Z}[\zeta_3])\) MSC: 20E06 Free products of groups, free products with amalgamation, Higman-Neumann-Neumann extensions, and generalizations 20-02 Research exposition (monographs, survey articles) pertaining to group theory 20G25 Linear algebraic groups over local fields and their integers 20E07 Subgroup theorems; subgroup growth Keywords:free products of groups; Seifert-Van-Kampen theorem; free generators; Cayley graph; free group; Nielsen-Schreier theorem; graphs; free products with amalgamation; graph of groups; arithmetic subgroups Citations:Zbl 0158.277; Zbl 0226.20054; Zbl 0308.20026; Zbl 0369.20013 PDF BibTeX XML