Abstract
A geometrical approach in the nonsymmetric connection framework is employed to examine the issue of higher order corrections to type IIB superstring backgrounds with a covariantly constant null Killing isometry and nonzero Ramond-Ramond field content. These describe generalized supersymmetric string waves and were obtained recently by us through the -duality transformations of purely NS-NS plane wave backgrounds. We find that the backgrounds are exact, subject to the existence of certain field redefinitions and provided certain restrictive conditions are satisfied.
- Received 27 September 1996
DOI:https://doi.org/10.1103/PhysRevD.55.3793
©1997 American Physical Society