Hall Graham S

Publications in Math-Net.Ru

1. Some developments of Petrov's work on conformal and projective structure
   
   Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, 153:3 (2011),  175–184
2. Holonomy and Projective Equivalence in 4-Dimensional Lorentz Manifolds
   
   SIGMA, 5 (2009), 066, 23 pp.