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arXiv 2204.05099math.CA
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截断奇异Radon算子的振动估计

Oscillation estimates for truncated singular Radon operators

Wojciech Słomian

摘要:

在本文中,我们证明了$L^p$上的一致振动估计,与$p\in(1,\infty)$,截断奇异积分的Radon型与Calderón-Zygmund核,在连续和离散设置。在离散情况下,我们使用Ionescu-Wainger乘子定理和Rademacher-Menshov不等式来处理离散奇异积分的数论性质。我们在连续条件下得到的结果可以看作是Campbell,Jones,Reinhold和Wierdl关于Calderón-Zygmund型连续奇异积分的结果的推广.

英文摘要:

In this paper we prove uniform oscillation estimates on $L^p$, with $p\in(1,\infty)$, for truncated singular integrals of the Radon type associated with Calderón-Zygmund kernel, both in continuous and discrete settings. In the discrete case we use the Ionescu-Wainger multiplier theorem and the Rademacher-Menshov inequality to handle the number-theoretic nature of the discrete singular integral. The result we obtained in the continuous setting can be seen as a generalisation of the results of Campbell, Jones, Reinhold and Wierdl for the continuous singular integrals of the Calderón-Zygmund type.

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