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arXiv 1302.1677math.AP
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一类积分方程正解的Harnack型不等式

Harnack type inequality for positive solution of some integral equation

Jerome Coville

摘要:

本文建立了描述从种群动力学到微磁性等各种现象的非局部非齐次方程的正解所满足的Harnack型不等式.对于正则域,我们还得到了一个直到边界的不等式。在这种情况下的主要困难在于一个精确的控制的解决方案以外的一个紧凑的集合和存在的地方一致的估计。我们克服了这个问题,证明了一个收缩的结果,使$L^1$规范的解决方案在两个紧集$ø_1\subset\subsetø_2$等价。利用相应的Harnack型不等式,我们还构造了与特定非局部算子相关的主正特征函数。

英文摘要:

In this paper, we establish some Harnack type inequalities satisfied by positive solutions of nonlocal inhomogeneous equations arising in the description of various phenomena ranging from population dynamics to micro-magnetism. For regular domains, we also derive an inequality up to the boundary. The main difficulty in such context lies in a precise control of the solutions outside a compact set and the existence of local uniform estimates. We overcome this problem by proving a contraction result which makes the $L^1$ norms of the solutions on two compact sets $ø_1\subset\subsetø_2$ equivalent. We also construct the principal positive eigenfunctions associated to particular nonlocal operators by using the corresponding Harnack type inequalities.

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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