Damek, Ewa; Latała, Rafał; Nayar, Piotr; Tkocz, Tomasz - In: Stochastic Processes and their Applications 125 (2015) 4, pp. 1688-1713
We show that for every positive p, the Lp-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 lp-norm of the coefficients and the constants are explicit....