Applications of the s-harmonic extension to the study of singularities of Emden’s equations
- 作者: Veron L.1
-
隶属关系:
- Université de Tours
- 期: 卷 71, 编号 1 (2025): Nonlocal and nonlinear problems
- 页面: 85-95
- 栏目: Articles
- URL: https://journals.rcsi.science/2413-3639/article/view/327841
- DOI: https://doi.org/10.22363/2413-3639-2025-71-1-85-95
- EDN: https://elibrary.ru/TZCNJN
- ID: 327841
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We use the Caffarelli–Silvestre extension to \( \mathrm{R}_+\times\mathrm{R}^N \) to study the isolated singularities of functions satisfying the semilinear fractional equation \( (-\Delta)^sv+\epsilon v^p=0 \) in a punctured domain of \( \mathrm{R}^N \) where \(\epsilon=\pm 1\), \(0 and \(p>1\). We emphasise the obtention of a priori estimates and analyse the set of self-similar solutions. We provide a complete description of the possible behaviour of solutions near a singularity.
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