Key points are not available for this paper at this time.
The spectrum of energy density fluctuations predicted by the inflationary cosmology is used to compute multipole moments of the microwave background temperature and the probability distributions for these moments. Comparison with the observed dipole moment gives a 90% confidence level upper bound of 3.4×10-6 on the amplitude of these fluctuations when they cross the horizon.
Abbott et al. (1984) studied this question.