RIEMANN-CARTAN SPACETIMES OF GODEL TYPE

A class of Riemann-Cartan Godel-type spacetimes are examined in the li ght of equivalence problem techniques. The conditions for local spacet ime homogeneity are derived, generalizing previous works on Riemannian Godel-type spacetimes. The equivalence of Riemann-Cartan Godel-type s pacetimes of this class is studied. It is shown that they admit a five -dimensional group of affine isometries and are characterized by three essential parameters l, m(2), omega: identical triads (l, m(2), omega ) correspond to locally equivalent manifolds. The algebraic types of t he irreducible parts of the curvature and torsion tensors are also pre sented.