In this work we present a partially new method to analyze fluctuations which
are induced by causal scaling seeds. We show that the power spectra due to this
kind of seed perturbations are determined by five analytic functions, which we
determine numerically for a special example. We put forward the view that, even
if recent work disfavors the models with cosmic strings and global O(4)
texture, causal scaling seed perturbations merit a more thorough and general
analysis, which we initiate in this paper.Comment: LaTeX file with RevTex, 6 pages, 6 PS figs., submitted to Phys. Rev.
D. A version with higher quality images can be found at
http://mykonos.unige.ch/~kunz
