Key points are not available for this paper at this time.
An explicitly coordinate-independent method, based on previous work by Hawking, is used to study linearized density perturbations of k=0 Friedmann cosmological models.Received 19 April 1976DOI:https://doi.org/10.1103/PhysRevD.14.327©1976 American Physical Society
Donald W. Olson (1976) studied this question.