Ryshkov, S. S. Maximal finite groups of integral \(n \times n\) matrices and full groups of integral automorphisms of positive quadratic forms (Bravais models). (English) Zbl 0287.20047 Proc. Steklov Inst. Math. 128(1972), 217-250 (1974). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 Documents MSC: 20H15 Other geometric groups, including crystallographic groups 20G30 Linear algebraic groups over global fields and their integers 11H55 Quadratic forms (reduction theory, extreme forms, etc.) PDF BibTeX XML Cite \textit{S. S. Ryshkov}, Proc. Steklov Inst. Math. 128, 217--250 (1974; Zbl 0287.20047) OpenURL