首先引入了一类由Littlewood—PaleY算子和BMO函数构成的交换子,然后利用原子分解的方法证明了该交换予在加权H^1空间上的有界性.
The commutators generated by the Littlewood-Paley operator and the BMO functions were introduced, and the H^1 estimates for the commutators were obtained by using the atomic decompositions.