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中国科学院大学学报 ›› 2016, Vol. 33 ›› Issue (4): 433-437.DOI: 10.7523/j.issn.2095-6134.2016.04.001

• 数学与物理学 •    下一篇

乘积空间上的广义哈代算子的有界性

魏明权, 燕敦验   

  1. 中国科学院大学数学科学学院, 北京 100049
  • 收稿日期:2015-12-02 修回日期:2016-01-04 发布日期:2016-07-15
  • 通讯作者: 燕敦验

Sharp bounds for generalized Hardy operator on product space

WEI Mingquan, YAN Dunyan   

  1. School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2015-12-02 Revised:2016-01-04 Published:2016-07-15
  • Supported by:

    Supported by the National Nature Science Foundation of China (11471309, 11271162, 11561062)

摘要:

研究乘积空间上的一类算子Uψf(x)=f(x1t1,…,xntn)ψ(t1,…,tndt1dtn在RMO(Rn)上有界的充分必要条件,这个条件完全依赖于定义在[0,1]×…×[0,1]上的非负函数ψ。还给出了Uψ的算子范数。此外,还把这个结果推广到高维乘积空间。

关键词: 广义哈代算子, 乘积空间, RMO(Rn)

Abstract:

We characterize a sufficient and necessary condition which ensures that the generalized Hardy operator Uψf(x)=f(x1t1,…,xntn)ψ(t1,…,tn)dt1dtn is bounded on RMO(Rn).The condition deeply depends on the nonnegative function ψ defined on [0,1]×…×[0,1].Furthermore, the corresponding operator norm is worked out.In addition, we also extend the results to the high-dimensional product space.

Key words: generalized Hardy operator, product space, RMO(Rn)

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