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arXiv 1602.02084math.FA
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关于并元算子的两个权估计

On two weight estimates for dyadic operators

Oleksandra Beznosova, Daewon Chung, Jean Carlo Moraes, Maria Cristina Pereyra

摘要:

我们提供了一个定量的两个重量估计的并元副积$π_b$在一定的条件下对一对重量$(u;v)$和$b$在$Carl_{u,v}$,一类新的功能,我们表明符合BMO时,$u = v \in A^d_2$。在极大函数从$L_2(u)$到$L_2(v)$和$v \in RH^d_1$有界的假设下,得到了并元平方函数和鞅变换的两个定量的权估计.最后,在$(u; v)$与$u^{-1} \in RH^d_1$联合的假设下,得到了二进平方函数从$L_2(u)$到$L_2(v)$的一个定量的双权估计,当$u = v$时,条件约化为$u \in A^d_2$,并且估计是已知的线性混合估计.

英文摘要:

We provide a quantitative two weight estimate for the dyadic paraproduct $π_b$ under certain conditions on a pair of weights $(u;v)$ and $b$ in $Carl_{u,v}$, a new class of functions that we show coincides with BMO when $u = v \in A^d_2$. We obtain quantitative two weight estimates for the dyadic square function and the martingale transforms under the assumption that the maximal function is bounded from $L_2(u)$ into $L_2(v)$ and $v \in RH^d_1$. Finally we obtain a quantitative two weight estimate from $L_2(u)$ into $L_2(v)$ for the dyadic square function under the assumption that the pair $(u; v)$ is in joint $A^d_2$ and $u^{-1} \in RH^d_1$, this is sharp in the sense that when $u = v$ the conditions reduce to $u \in A^d_2$ and the estimate is the known linear mixed estimate.

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