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arXiv 2006.02172math.AP
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具有Orlicz增长的测度椭圆问题解的Wolff势和局部性态

Wolff potentials and local behaviour of solutions to measure data elliptic problems with Orlicz growth

Iwona Chlebicka, Flavia Giannetti, Anna Zatorska-Goldstein

摘要:

对于非线性算子$A:Ω\times\mathbb{R}^n\to\mathbb{R}^n$对空间变量具有可测依赖性且对最后一个变量具有Orlicz增长的$A$ -上调和函数,建立了用广义Wolff型非线性势表示的点态估计.结果是尖锐的,因为相同的电位控制从上方和从下方边界。应用它,我们提供了一堆精确的正则性结果,包括连续性和Hölder连续性的解决方案,涉及的措施,满足自然尺度表示的条件。最后,我们给出了Hedberg-Wolff定理的一个变形,它刻画了Orlicz空间的对偶。

英文摘要:

We establish pointwise estimates expressed in terms of a nonlinear potential of a generalized Wolff type for $A$-superharmonic functions with nonlinear operator $A:Ω\times\mathbb{R}^n\to\mathbb{R}^n$ having measurable dependence on the spacial variable and Orlicz growth with respect to the last variable. The result is sharp as the same potential controls bounds from above and from below. Applying it we provide a bunch of precise regularity results including continuity and Hölder continuity for solutions to problems involving measures that satisfies conditions expressed in the natural scales. Finally, we give a variant of Hedberg--Wolff theorem on characterization of the dual of the Orlicz space.

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