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arXiv 1502.07542math.CA
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关于Hardy空间与有界算子的注记

A Note on Hardy Spaces and Bounded Operators

Pablo Rocha

摘要:

本文证明了:如果f属于Hp(Rn)\capLs(Rn),其中0 < p <= 1 < s < 1,则存在一个(p;无穷)-原子分解在Ls(Rn)中收敛于f.由此,我们证明了Ls(Rn)上的有界算子T可以扩张为从Hp(Rn)到Lp(Rn)的有界算子当且仅当T在所有(p;无限)-原子上按Lp范数一致有界.从Hp(Rn)到Hp(Rn)也得到类似的结果。

英文摘要:

In this note we show that if f belongs to Hp(Rn)\capLs(Rn), where 0 < p <= 1 < s < 1, then there exists a (p;infinite)-atomic decomposition which converges to f in Ls(Rn). From this fact, we prove that a bounded operator T on Ls(Rn) can be extended to a bounded operator from Hp(Rn) into Lp(Rn) if and only if T is bounded uniformly in Lp norm on all (p;infinite)-atoms. A similar result is also obtained from Hp(Rn) into Hp(Rn).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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