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arXiv 1709.04337math.APmath.FA
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具有VMO假设和一般边界条件的变首项系数高阶抛物型方程

Higher-order parabolic equations with VMO assumptions and general boundary conditions with variable leading coefficients

Hongjie Dong, Chiara Gallarati

摘要:

我们证明了加权混合$L_{p}(L_{q})$ -估计,与$p,q\in(1,\infty)$,高阶椭圆型和抛物型方程的半空间$\mathbb{R}^{d+1}_{+}$和区域上的一般边界条件,满足Lopatinskii-Shapiro条件。我们假设椭圆算子$A$的首项系数在时间和空间变量上都属于消失平均振荡类,并且边界条件的首项系数是可变的.证明是基于并推广了作者最近在[DG 17]中得到的估计。[DG17] H.Dong和C. Gallarati.具有VMO假设和一般边界条件的高阶椭圆和抛物型方程。接受发表在泛函分析杂志上。参见:arXiv:1702.03254。

英文摘要:

We prove weighted mixed $L_{p}(L_{q})$-estimates, with $p,q\in(1,\infty)$, for higher-order elliptic and parabolic equations on the half space $\mathbb{R}^{d+1}_{+}$ and on domains with general boundary conditions which satisfy the Lopatinskii--Shapiro condition. We assume that the elliptic operators $A$ have leading coefficients which are in the class of vanishing mean oscillations both in the time and the space variables, and that the boundary conditions have variable leading coefficients. The proofs are based on and generalize the estimates recently obtained by the authors in [DG17]. [DG17] H.Dong and C.Gallarati. Higher order elliptic and parabolic equations with VMO assumptions and general boundary conditions. Accepted for publication in Journal of Functional Analysis. See: arXiv:1702.03254.

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