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arXiv 1005.4885math.AP
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利用最大值原理证明椭圆型方程正上解的不存在性

Nonexistence of positive supersolutions of elliptic equations via the maximum principle

Scott N. Armstrong, Boyan Sirakov

摘要:

给出了一种新的方法,证明了椭圆型不等式在$\mathbb{R}^n$的无界区域上不存在正上解。我们的最大值原理为基础的参数的简单性和鲁棒性提供了它的适用性,许多椭圆不等式和系统,包括准线性算子,如$p$ -拉普拉斯算子,和nondivergence形式的完全非线性算子,如Bellman-Isaacs算子。我们的方法根据不等式中出现的非线性函数给出了新的和最优的结果,并适用于在整个空间以及外部区域和锥状区域上保持的不等式。

英文摘要:

We introduce a new method for proving the nonexistence of positive supersolutions of elliptic inequalities in unbounded domains of $\mathbb{R}^n$. The simplicity and robustness of our maximum principle-based argument provides for its applicability to many elliptic inequalities and systems, including quasilinear operators such as the $p$-Laplacian, and nondivergence form fully nonlinear operators such as Bellman-Isaacs operators. Our method gives new and optimal results in terms of the nonlinear functions appearing in the inequalities, and applies to inequalities holding in the whole space as well as exterior domains and cone-like domains.

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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