向量值函数的加权模不等式

Weighted Norm Inequalities of Vector-Valued Functions

  • 摘要: 基于H-L极大算子在加权向量值函数空间的推广, 证明了权函数υ(x)≥0, 存在一个与υ(x)有关的权函数ω(x)且ω(x)<∞, a.e.x∈Rn, 使得向量值的H-L极大算子M从Llpq(Rn, ωdx)空间到Lp(Rn, υdx)空间是有界的, 当且仅当∫Rnυ(x)(1+|x|n)-pdx<∞成立.利用双倍性质、H lder’s不等式等证明了其充分性;利用特征函数构造出向量函数证明了其必要性.

     

    Abstract: To generalize H-L maximal function to vector-valued weighted space, it is proved that for a weighted function υ(x)≥0, the necessary and sufficient conditions are obtained for ∫Rnυ(x)(1+(|x|n-pdx<)∞, such that the vector-valued H-L maximal operator is bounded from L<sup>p<sub>lq(Rn, ωdx) to Lp(Rn, υdx) for some ω(x) that is related to υ(x) and ω(x)<∞, a.e.x∈Rn.Based on the double property, Hlder's inequality et al, the sufficiency condition of the theorem are proved.Employing the eigenfunction, the vector-valued functions are set up, and conditions of necessity of the theorem are completed.

     

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