arXiv subjects
Publications and source records attributed to Nakhlé Asmar.
Let B denote an arbitrary Banach space, G a compact abelian group with Haar measure $μ$ and dual group $Γ$. Let E be a Sidon subset of $Γ$ with Sidon constant S(E). Let r_n denote the n-th Rademacher function on [0, 1]. We show that there is a constant c, depending only on S(E), such that, for all $α> 0$: c^{-1}P[| \sum_{n=1}^Na_nr_n| >= c α] <= μ[| \sum_{n=1}^Na_nγ_n| >= α] <= cP [|\sum_{n=1}^Na_nr_n| >= c^{-1} α]
The transference theory for Lp spaces of Calderon, Coifman, and Weiss is a powerful tool with many applications to singular integrals, ergodic theory, and spectral theory of operators. Transference methods afford a unified approach to many problems in diverse areas, which before were proved by a variety of methods. The purpose of this paper is to bring about a similar approach to the study of measures. Specifically, deep results in classical harmonic analysis and ergodic theory, due to Bochner, de Leeuw-Glicksberg, Forelli, and others, are all extensions of the classical F.&M. Riesz Theorem. We will show that all these extensions are obtainable via our new transference principle for spaces of measures.