Gott Time Machines Cannot Exist in an Open (2+1)-Dimensional Universe With Timelike Total Momentum
arXiv:hep-th/9207037
Abstract
We prove the title.
34 pages, RevTeX v. 2.0 or 2.1, 3 Postscript figures appended, June, 1992. (Updated version, July 30, 1992: differs from original by modifications in references.)