Endpoint estimates for commutators of Calderón-Zygmund type operators

Abstract

In this paper, we establish some endpoint estimates for the commutator, [b, T], of a class of Calderón-Zygmund type operator, such as the weak type L log L estimate, weak type (H¹, L¹) estimate and some estimates in the Hardy type spaces associated with b, where b∈BMO(Rⁿ).