“…It is simple to prove that the coefficients ξ r,1,N and ξ r,2,N , ξ c,1,N and ξ c,2,N are independent of the constraint on the density generators for arbitrary distributions. These have been calculated for complex Student's t or complex generalized Gaussian distributions by several authors (see e.g., [8], [9], [22]) and given respectively by:…”