Two-sided bounds for -norms of combinations of products of independent random variables
arXiv:1404.0344 · doi:10.1016/j.spa.2014.11.012
Abstract
We show that for every positive p, the L_p-norm of linear combinations (with scalar or vector coefficients) of products of i.i.d. random variables, whose moduli have a nondegenerate distribution with the p-norm one, is comparable to the l_p-norm of the coefficients and the constants are explicit. As a result the same holds for linear combinations of Riesz products. We also establish the upper and lower bounds of the L_p-moments of partial sums of perpetuities.
29 pages; main result stated in a more general form, minor typos corrected