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A unified approach to symmetry for semilinear equations associated to the Laplacian in RN
Journal of Mathematical Analysis and Applications ( IF 1.2 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.jmaa.2020.124087
A. Avila , F. Brock

Abstract We show radial symmetry of positive solutions to the Henon equation − Δ u = | x | − l u q in R N ∖ { 0 } , where l ≥ 0 , q > 0 and satisfy further technical conditions. A new ingredient is a maximum principle for open subsets of a half space. It allows to apply the Moving Plane Method once a slow decay of the solution at infinity has been established, that is lim | x | → ∞ ⁡ | x | γ u ( x ) = L , for some numbers γ ∈ ( 0 , N − 2 ) and L > 0 . Moreover, some examples of non-radial solutions are given for q > N + 1 N − 3 and N ≥ 4 . We also establish radial symmetry for related and more general problems in R N and R N ∖ { 0 } .

中文翻译:

RN 中与拉普拉斯算子相关联的半线性方程的统一对称方法

摘要 我们展示了 Henon 方程 - Δ u = | 正解的径向对称性。× | − RN ∖ { 0 } 中的 luq ,其中 l ≥ 0 ,q > 0 并满足进一步的技术条件。一个新成分是半空间的开子集的最大原理。一旦建立了无穷远解的缓慢衰减,即 lim | ,它允许应用移动平面方法。× | → ∞ ⁡ | × | γ u ( x ) = L ,对于一些数 γ ∈ ( 0 , N − 2 ) 和 L > 0 。此外,对于 q > N + 1 N − 3 和 N ≥ 4 给​​出了一些非径向解的例子。我们还为 RN 和 RN ∖ { 0 } 中的相关和更一般的问题建立径向对称。
更新日期:2020-08-01
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