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arXiv 2007.15402math.CVmath.FA
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由径向权诱导的Hilbert型算子

Hilbert-type operator induced by radial weight

Universidad de Málaga(马拉加大学)

José Ángel Peláez, Elena de la Rosa

AI总结:

本文研究了由径向权诱导的Hilbert型算子的有界性,证明其在H^∞到Bloch空间的有界条件及在Hardy空间和加权Bergman空间中的表现。

摘要:

我们考虑由径向权ω在单位圆盘D中诱导的Bergman空间A^2_ω的再生核{B^ω_ζ}_{ζ∈D}定义的Hilbert型算子H_ω(f)(z)=∫₀¹f(t)(1/z∫₀^zB^ω_t(u)du)ω(t)dt。我们证明H_ω从H^∞到Bloch空间有界当且仅当ω属于满足双倍条件sup_{0≤r<1}∫_r^1ω(s)ds/∫_{(1+r)/2}^1ω(s)ds<∞的类D̃。进一步,我们描述了使得H_ω在Hardy空间H^1上有界的权重ω,并且显示对于任何ω∈D̃和p∈(1,∞),H_ω:L^p_{[0,1)}→H^p有界当且仅当满足Muckenhoupt型条件sup_{0<r<1}(1+∫₀^r1/ω̃(t)^p dt)^{1/p}(∫_r^1ω(t)^{p'}dt)^{1/p'}<∞。此外,我们还讨论了H_ω在加权Bergman空间A^p_ν上的类似问题。

英文摘要:

We consider the Hilbert-type operator defined by $$ H_ω(f)(z)=\int_0^1 f(t)\left(\frac{1}{z}\int_0^z B^ω_t(u)\,du\right)\,ω(t)dt,$$ where $\{B^ω_ζ\}_{ζ\in\mathbb{D}}$ are the reproducing kernels of the Bergman space $A^2_ω$ induced by a radial weight $ω$ in the unit disc $\mathbb{D}$. We prove that $H_ω$ is bounded from $H^\infty$ to the Bloch space if and only if $ω$ belongs to the class $\widehat{\mathcal{D}}$, which consists of radial weights $ω$ satisfying the doubling condition $\sup_{0\le r<1} \frac{\int_r^1 ω(s)\,ds}{\int_{\frac{1+r}{2}}^1ω(s)\,ds}<\infty$. Further, we describe the weights $ω\in \widehat{\mathcal{D}}$ such that $H_ω$ is bounded on the Hardy space $H^1$, and we show that for any $ω\in \widehat{\mathcal{D}}$ and $p\in (1,\infty)$, $H_ω:\,L^p_{[0,1)} \to H^p$ is bounded if and only if the Muckenhoupt type condition \begin{equation*} \sup\limits_{0<r<1}\left(1+\int_0^r \frac{1}{\widehatω(t)^p} dt\right)^{\frac{1}{p}} \left(\int_r^1 ω(t)^{p'}\,dt\right)^{\frac{1}{p'}} <\infty, \end{equation*} holds. Moreover, we address the analogous question about the action of $H_ω$ on weighted Bergman spaces $A^p_ν$.

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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