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arXiv 1708.05079math.AP
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具有粗糙系数的高阶椭圆型方程组的适定性外推

Extrapolation of well posedness for higher order elliptic systems with rough coefficients

Ariel Barton

摘要:

本文研究了高阶散度型椭圆型微分算子的边值问题。我们建立了Besov空间$\dot B^{p,p}_s$,$p\leq 1$中边界数据问题的适定性,给出了$s$和$p>1$的适当值的适定性.我们使用$0$和$1$之间的平滑参数$s$;这允许我们考虑非齐次微分方程。结合Maz'ya的研究结果,I.米特雷亚湾Mitrea,and Shaanova,这使我们能够为高阶算子建立新的适定性结果,高阶算子的系数在或接近于空间$VMO$,双调和算子,四阶算子接近于双调和算子.

英文摘要:

In this paper we study boundary value problems for higher order elliptic differential operators in divergence form. We establish well posedness for problems with boundary data in Besov spaces $\dot B^{p,p}_s$, $p\leq 1$, given well posedness for appropriate values of $s$ and $p>1$. We work with smoothness parameter $s$ between $0$ and $1$; this allows us to consider inhomogeneous differential equations. Combined with results of Maz'ya, I. Mitrea, M. Mitrea, and Shaposhnikova, this allows us to establish new well posedness results for higher order operators whose coefficients are in or close to the space $VMO$, for the biharmonic operator, and for fourth-order operators close to the biharmonic operator.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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