CfPA / 97th-10 IC-96-97 / 23 Submitted to PRD Cumulants as non Gaussian qualifiers

We discuss the requirements of good statistics for quantifying nonGaussianity in the Cosmic Microwave Background. The importance of rotational invariance and statistical independence is stressed, but we show that these are sometimes incompatible. It is shown that the first of these requirements prefers a real space (or wavelet) formulation, whereas the… (More)