Citation: | Xixi Jiang, Feng Liu. CONTINUITY OF THE MULTILINEAR MAXIMAL COMMUTATORS IN SOBOLEV SPACES[J]. Journal of Applied Analysis & Computation, 2024, 14(3): 1674-1697. doi: 10.11948/20230334 |
In the present paper we study the Sobolev continuity of the multilinear maximal commutators and their fractional variants with Lipschitz symbols. More precisely, let $\mathfrak{M}_{\alpha,\vec{b}}$ be the multilinear fractional maximal commutators, where $0\leq\alpha<mn$ and $\vec{b}=(b_{1},\ldots,b_{m})$ with each $b_i\in \rm Lip(\mathbb{R}^n)$. We establish the continuity of $\mathfrak{M}_{\alpha,\vec{b}}:W^{1,p_1} (\mathbb{R}^n)\times\cdots\times W^{1,p_m}(\mathbb{R}^n)\rightarrow W^{1,q}(\mathbb{R}^n)$, provided that $1<p_1,\ldots,p_m<\infty$, $1/q=\sum_{i=1}^m1/p_i-\alpha/n$ and $1\leq q<\infty$. The main result we obtain answers a question originally posed by Chen and Liu in 2022. Our main result is new, even in the linear case m=1.
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