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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Acta Mathematica Sin...arrow_drop_down
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Acta Mathematica Sinica English Series
Article . 2001 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
zbMATH Open
Article . 2001
Data sources: zbMATH Open
Acta Mathematica Sinica
Article . 2001 . Peer-reviewed
Data sources: Crossref
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Remarks on Herz-Type Hardy Spaces

Remarks on Herz-type Hardy spaces
Authors: Miyachi, Akihiko;

Remarks on Herz-Type Hardy Spaces

Abstract

Let \(B_k=\{x\in \mathbb R^n; |x|\leq 2^k\}\) and \(C_k=B_k \setminus B_{k-1}\) for \(k\in \mathbb Z\). Let \(\chi_k\) denote the characteristic function of the set \(C_k\). The homogeneous Herz space \(\dot K_q^{\alpha, p}(\mathbb R^n)\) is defined in terms of \[ \begin{aligned} \|f\|_{\dot K_q^{\alpha, p}(\mathbb R^n)}&=\bigl\{\sum_{k=-\infty}^\infty 2^{k\alpha p}\|f\chi_{k}\|_{L^q(\mathbb R^n)}^p\bigr\}^{1/p} \text{ by letting} \\ \dot K_q^{\alpha, p}(\mathbb R^n) &=\{f\in L_{\roman{loc}}^q(\mathbb R^n\setminus \{0\}); \|f\|_{\dot K_q^{\alpha, p}(\mathbb R^n)}<\infty\}.\end{aligned} \] The inhomogeneous Herz space \(K_q^{\alpha, p}(\mathbb R^n)\) is defined in terms of \[ \begin{aligned}\|f\|_{K_q^{\alpha, p}(\mathbb R^n)} &= \|f\chi_{B_0}\|_{L^q(\mathbb R^n)^p} +\bigl\{\sum_{k=1}^\infty 2^{k\alpha p}\|f\chi_{k}\|_{L^q(\mathbb R^n)}^p\bigr\}^{1/p} \text{ by letting} \\ K_q^{\alpha, p}(\mathbb R^n) &=\{f\in L_{\roman{loc}}^q(\mathbb R^n); \|f\|_{K_q^{\alpha, p}(\mathbb R^n)}<\infty\}, \\ \dot K_q^{0, q}(\mathbb R^n)&= L^q(\mathbb R^n)\text{ and} \\ \dot K_q^{\alpha/q, q}(\mathbb R^n)&=L_{|x|^\alpha}(\mathbb R^n).\end{aligned} \] Herz-type Hardy spaces are defined in terms of the grand maximal functions or radial maximal functions of distributions \(f\ast \varphi_t\) \((\varphi\in C_0^\infty(\mathbb R^n)\) with \(\int \varphi dx=1)\), normed by \(\dot K_q^{\alpha, p}(\mathbb R^n)\) or \(K_q^{\alpha, p}(\mathbb R^n)\), like as in the classical Hardy spaces. In most of the papers dealing with the Herz-type Hardy spaces, the studies are restricted to the case \(1

Related Organizations
Keywords

Herz-type Hardy spaces, Hardy spaces, Singular and oscillatory integrals (Calderón-Zygmund, etc.), Topological linear spaces of test functions, distributions and ultradistributions, multilinear operator, fractional integrals, singular integrals, boundedness, \(H^p\)-spaces

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
14
Top 10%
Top 10%
Average
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