The Skitovich-Darmois theorem for finite Abelian groups

Details The Skitovich-Darmois theorem for finite Abelian groups The Skitovich-Darmois theorem for finite Abelian groups

2011-06-21

arxiv.org/abs/1106.4134v1

Mathematics

Probability

Scientific paper

Let X be a finite Abelian group, xi_i, i=1,2,...,n,n>1, be independent random variables with values in X and distributions mu_i. Let alpha_{ij},i,j=1,2,...,n, be automorphisms of X. We prove that the independence of n linear forms L_j=alpha_{1j}xi_1+alpha_{2j}xi_2+...+alpha_{nj}xi_n implies that all mu_i are shifts of the Haar distributions on some subgroups of the group X. This theorem is an analogue of the Skitovich-Darmois theorem for finite Abelian groups.

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