On some mean oscillation inequalities for martingales
On some mean oscillation inequalities for martingales
Let (X, • X ) be a Banach function space over a nonatomic probability space (Ω, Σ, P).If f = (fn) n∈Z + is a martingale with respect to a filtration F = (Fn) n∈Z + , then we definewhere f -1 ≡ 0. In this paper, we give a …