The Auslander conjecture for groups leaving a form of signature (n-2,2) invariant

Abels H, Margulis GA, Soifer GA. The Auslander conjecture for groups leaving a form of signature (n-2,2) invariant. Israel Journal of Mathematics. 2005;148:11-21.The Auslander conjecture claims that every affine crystallographic group Gamma is virtually solvable. We prove here this conjecture for the case when the linear part of Gamma is contained in the orthogonal group O(n - 2, 2)