Weighted vector-valued estimates for a non-standard Calderón-Zygmund operator
Abstract: In this paper, the author considers the weighted vector-valued estimate for the operator defined by $$T_Af(x)={\rm p.\,v.}\int_{\mathbb{R}n}\frac{\Omega(x-y)}{|x-y|{n+1}}\big(A(x)-A(y)-\nabla A(y)\big)f(y){\rm d}y,$$ and the corresponding maximal operator $T_A*$, where $\Omega$ is homogeneous of degree zero, has vanishing moment of order one, $A$ is a function in $\mathbb{R}n$ such that $\nabla A\in {\rm BMO}(\mathbb{R}n)$. By a pointwise estimate for $|{T_Af_k(x)}|{lq}$ and the weighted $Lp$ estimates for the sparse operator $$\mathcal{A}{\mathcal{S},\,L(\log L)\beta}f(x)=\sum_{Q\in\mathcal{S}}|f|_{L(\log L){\beta},\,Q}\chi_{Q}(x) ,$$ the author establishes some weak and endpoint quantitative weighted vector-valued estimates for $T_A$ and $T_A*$.
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