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Sign‐changing solutions for a nonhomogeneous Paneitz‐type problem
Mathematische Nachrichten ( IF 1 ) Pub Date : 2020-01-31 , DOI: 10.1002/mana.201800186
Salomón Alarcón 1 , Nicolás Varela 1
Affiliation  

We consider the problem
Δ 2 u = | u | 8 N 4 u + ε f ( x ) in Ω , u = Δ u = 0 on Ω , ( P ε )
where Ω is a bounded smooth domain in R N , N 5 , that exhibits certain symmetries and contains the origin, f L ( Ω ) , f 0 , f 0 , and ε > 0 is a small parameter. By using the Lyapunov–Schmidt reduction method and topological degree theory, for each sufficiently large k N , we construct sign‐changing solutions to ( P ε ) exhibiting k negative spikes at the vertices of a regular polygon and a single positive spike at the origin.


中文翻译:

非均匀Paneitz型问题的符号转换解决方案

我们考虑这个问题
Δ 2 ü = | ü | 8 ñ - 4 ü + ε F X Ω ü = Δ ü = 0 Ω P ε
其中Ω是 [R ñ ñ 5 ,具有某些对称性并包含原点, F 大号 Ω F 0 F 0 ε > 0 是一个小参数。通过使用Lyapunov–Schmidt约简方法和拓扑度理论,对于每个足够大的域 ķ ñ ,我们为 P ε 在规则多边形的顶点处显示k个负峰值,在原点处显示单个正峰值。
更新日期:2020-01-31
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