Vinberg, E. B. On groups of unit elements of certain quadratic forms. (English) Zbl 0252.20054 Math. USSR, Sb. 16, 17-35 (1972). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 44 Documents MSC: 20F05 Generators, relations, and presentations of groups 11E16 General binary quadratic forms 51M10 Hyperbolic and elliptic geometries (general) and generalizations 20H10 Fuchsian groups and their generalizations (group-theoretic aspects) PDFBibTeX XMLCite \textit{E. B. Vinberg}, Math. USSR, Sb. 16, 17--35 (1972; Zbl 0252.20054) Full Text: DOI