CMBR FLUCTUATIONS IN THE BIANCHI TYPE I SPACETIME: THE EFFECTS OF GRAVITATIONAL WAVES
In the framework of linear perturbation theory and linear approximation of spacetime anisotropy, we investigated the formulae for the CMBR temperature anisotropy and fluctuation spectrum which have their origin in the primordial tensor perturbations of the perturbed Bianchi type I universe model. The resulting formulae were compared with those of the flat Friedmann model.