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Positive solutions to the sublinear Lane-Emden equation are isolated
Communications in Partial Differential Equations ( IF 2.1 ) Pub Date : 2021-05-24 , DOI: 10.1080/03605302.2021.1920613 Lorenzo Brasco 1 , Guido De Philippis 2 , Giovanni Franzina 3
中文翻译:
次线性 Lane-Emden 方程的正解是孤立的
更新日期:2021-05-24
Communications in Partial Differential Equations ( IF 2.1 ) Pub Date : 2021-05-24 , DOI: 10.1080/03605302.2021.1920613 Lorenzo Brasco 1 , Guido De Philippis 2 , Giovanni Franzina 3
Affiliation
Abstract
We prove that on a smooth bounded set, the positive least energy solution of the Lane-Emden equation with sublinear power is isolated. As a corollary, we obtain that the first eigenvalue of the Dirichlet-Laplacian is not an accumulation point of the spectrum, on a smooth bounded set. Our results extend to a suitable class of Lipschitz domains, as well.
中文翻译:
次线性 Lane-Emden 方程的正解是孤立的
摘要
我们证明了在光滑有界集上,具有次线性幂的 Lane-Emden 方程的正最小能量解是孤立的。作为推论,我们得到第一个Dirichlet-Laplacian 的特征值不是 谱,在光滑有界集上。我们的结果也扩展到了合适的 Lipschitz 域类别。