作者：QiangWU; DaChunYANG多线性算子奇异积分级数积分csmo赫兹空间
摘要：In this paper, two classes of closely related multilinear singular and fractional integrals,which include the commutators as special cases, are studied and their boundedness on Herz type spaces is discussed. In fact, it is proved that these operators are actually not bounded in certain extreme cases.
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