Hedlund, Gustav A. A metrically transitive group defined by the modular group. (English) Zbl 0012.20301 Am. J. Math. 57, 668-678 (1935). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 7 Documents Keywords:Group theory PDF BibTeX XML Cite \textit{G. A. Hedlund}, Am. J. Math. 57, 668--678 (1935; Zbl 0012.20301) Full Text: DOI OpenURL