摘要
In this paper, we consider the following semilinear elliptic equation: {−Δu=h(x,u)inΩ,u⩾0on∂Ω, where Ω is an exterior domain in ℝN with N ⩾ 3, h: Ω × ℝ+ → ℝ is a measurable function, and derive optimal nonexistence results of positive supersolutions. Our argument is based on a nonexistence result of positive supersolutions of a linear elliptic problem with Hardy potential. We also establish sharp nonexistence results of positive supersolutions to an elliptic system.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 1307-1322 |
| 页数 | 16 |
| 期刊 | Science China Mathematics |
| 卷 | 63 |
| 期 | 7 |
| DOI | |
| 出版状态 | 已出版 - 1 7月 2020 |
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