Stallings, John Centerless groups – an algebraic formulation of Gottlieb’s theorem. (English) Zbl 0201.36001 Topology 4, 129-134 (1965). Reviewer: D. R. Brown (M. R. 34#2666) Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 57 Documents MSC: 57M05 Fundamental group, presentations, free differential calculus Citations:Zbl 0148.17106 PDF BibTeX XML Cite \textit{J. Stallings}, Topology 4, 129--134 (1965; Zbl 0201.36001) Full Text: DOI OpenURL