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General uniqueness results for large solutions
Zeitschrift für angewandte Mathematik und Physik ( IF 1.7 ) Pub Date : 2020-06-12 , DOI: 10.1007/s00033-020-01325-5
Julián López-Gómez , Luis Maire , Laurent Véron

We give a series of very general sufficient conditions in order to ensure the uniqueness of positive large solutions for \(-\Delta u+f(x,u)=0\) in a bounded domain \(\Omega \) where \(f:{{\overline{\Omega }}}\times {\mathbb {R}}\mapsto {\mathbb {R}}_+\) is a continuous function, such that \(f(x,0)=0\) for \(x\in {{\overline{\Omega }}}\), and \(f(x,r)>0\) for x in a neighborhood of \(\partial \Omega \) and all \(r>0\).



中文翻译:

大型解决方案的一般唯一性结果

我们给出了一系列非常普遍的充分条件,以确保\(-\ Delta u + f(x,u)= 0 \)的正大解在有界域\(\ Omega \)中的唯一性,其中\( f:{{\ overline {\ Omega}}} \ times {\ mathbb {R}} \ mapsto {\ mathbb {R}} _ + \)是一个连续函数,因此\(f(x,0)= 0 \)\(X \在{{\划线{\欧米茄}}} \),\(F(X,R)> 0 \)X中的邻域\(\局部\欧米茄\)和全部\(r> 0 \)

更新日期:2020-06-12
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