Lower bounds for the dyadic Hilbert transform

Lower bounds for the dyadic Hilbert transform
复制标题

二进希尔伯特变换的下界

DOI:
--
复制
发表时间:
2016
期刊:
影响因子:
--
通讯作者:
B. Wick
B. Wick
中科院分区:
--
文献类型:
--
作者:
Philippe Jaming;Elodie Pozzi;B. Wick

文献摘要

参考文献

被引文献

相似文献

在本文中,我们寻求$leftVert S f ightVert_{L^2(K)}geq C(I,K)leftVert f ightVert_{L^2(I)}$的下界,其中$I$和$K$是两个并矢区间,$f$在$I$中得到支持。如果$Isubset K$存在这样的边界,而在其他情况下$Ksubsetneq I$和$Kcap I=emptyset$,这样的边界仅在$f$的导数的附加约束下可用。在后一种情况下,我们建立了一个形式为$leftVert S f ightVert_{L^2(K)}geq C(I,K)|leftlangle f ight angle_I|$的界,其中$leftlangle f ight angle_I$是$f$除以$I$的平均值。这为我们通常利用的希尔伯特变换的类似问题提供了新的思路。
In this paper, we seek lower bounds of the dyadic Hilbert transform (Haar shift) of the form $leftVert S f ightVert_{L^2(K)}geq C(I,K)leftVert f ightVert_{L^2(I)}$ where $I$ and $K$ are two dyadic intervals and $f$ supported in $I$. If $Isubset K$ such bound exist while in the other cases $Ksubsetneq I$ and $Kcap I=emptyset$ such bounds are only available under additional constraints on the derivative of $f$. In the later case, we establish a bound of the form $leftVert S f ightVert_{L^2(K)}geq C(I,K)|leftlangle f ight angle_I|$ where $leftlangle f ight angle_I$ is the mean of $f$ over $I$. This sheds new light on the similar problem for the usual Hilbert transform that we exploit.
DOI: 10.1088/0031-9155/57/7/1873
发表时间: 2012-04-07
影响因子: 3.5
作者:
Zeng GL;Gullberg GT
通讯作者: Gullberg GT