Curvature Properties of G\"{o}del metric
  The main aim of this article is to investigate the geometric structures admitting by the G\"{o}del spacetime which produces a new class of semi-Riemannian manifolds (see Theorem 4.1 and Theorem 4.5). We also consider some extension of G\"{o}del metric (see Example 4.1). 
Ryszard Deszcz, Marian Hotlo\'s, Jan Je{\l}owicki, Haradhan Kundu and   Absos Ali Shaikh
math.DG