Products of functions in BMO and H1 spaces on spaces of homogeneous type

We give an extension to certain RD-space X, i.e., space of homogeneous type in the sense of Coifman and Weiss, which has the reverse doubling property, of the definition and various properties of the product of functions in BMO(X) and H1(X), and functions in Lipschitz space and Hp(X) for , where n and θ denote respectively the “dimension” and the order of X.