The $s$-Riesz transform of an $s$-dimensional measure in $R^2$ is unbounded for $1

The $s$-Riesz transform of an $s$-dimensional measure in $R^2$ is unbounded for $1
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$R^2$ 中 $s$ 维度量的 $s$-Riesz 变换对于 $1 是无界的

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发表时间:
2011
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通讯作者:
A. Volberg
A. Volberg
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作者:
V. Eiderman;F. Nazarov;A. Volberg

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本文证明了对于sin(1,2),在R^2中不存在全低非正则有限正Borel测度μ,其中reak $mathcal H^s(suppmu)<+infty$ such that $|RMU| ci{L^infty(m_2)}<+infty$,其中$Rmu=muastfrac{x}{|X| ^{s+1}}$和$m_2$是$R^2$中的勒贝格测度。结合普拉和Vihtil“a的已知结果,证明了对任意非整数sin(0,2)和R ^2中的任意有限正Borel测度,当H^s(suppmu)<+infty时,有|RMU| ci{L^infty(m_2)}=infty$。
In this paper, we prove that for $sin(1,2)$ there exists no totally lower irregular finite positive Borel measure $mu$ in $R^2$ withreak $mathcal H^s(suppmu)<+infty$ such that $|Rmu|ci{L^infty(m_2)}<+infty$, where $Rmu=muastfrac{x}{|x|^{s+1}}$ and $m_2$ is the Lebesgue measure in $R^2$. Combined with known results of Prat and Vihtil"a, this shows that for any non-integer $sin(0,2)$ and any finite positive Borel measure in $R^2$ with $mathcal H^s(suppmu)<+infty$, we have $|Rmu|ci{L^infty(m_2)}=infty$.