文摘
Let be such that is an Orlicz function and is a Muckenhoupt weight uniformly in . In this article, the authors introduce the Musielak-Orlicz Campanato space ; as an application, the authors prove that some of them is the dual space of the Musielak-Orlicz Hardy space , which, in the case when and , was obtained by L.D. Ky [ ]. The authors also establish a John-Nirenberg inequality for functions in and, as an application, the authors also obtain several equivalent characterizations of , which, in return, further induce the -Carleson measure characterization of .