Existence of solutions for nonlinear elliptic PDEs with fractional Laplacians on open balls
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2021
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| _version_ | 1866914142835703808 |
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| author | Penent, Guillaume Privault, Nicolas |
| author_facet | Penent, Guillaume Privault, Nicolas |
| contents | We prove the existence of viscosity solutions for fractional semilinear elliptic PDEs on open balls with bounded exterior condition in dimension $d\geq 1$. Our approach relies on a tree-based probabilistic representation based on a (2s)-stable branching processes for all $s\in (0,1)$, and our existence results hold for sufficiently small exterior conditions and nonlinearity coefficients. In comparison with existing approaches, we consider a wide class of polynomial nonlinearities without imposing upper bounds on their maximal degree or number of terms. Numerical illustrations are provided in large dimensions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2110_09941 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Existence of solutions for nonlinear elliptic PDEs with fractional Laplacians on open balls Penent, Guillaume Privault, Nicolas Analysis of PDEs Probability 35J15, 35J25, 35J60, 35R11, 35B65, 60J85, 60G51, 60G52, 65C05, 33C05 We prove the existence of viscosity solutions for fractional semilinear elliptic PDEs on open balls with bounded exterior condition in dimension $d\geq 1$. Our approach relies on a tree-based probabilistic representation based on a (2s)-stable branching processes for all $s\in (0,1)$, and our existence results hold for sufficiently small exterior conditions and nonlinearity coefficients. In comparison with existing approaches, we consider a wide class of polynomial nonlinearities without imposing upper bounds on their maximal degree or number of terms. Numerical illustrations are provided in large dimensions. |
| title | Existence of solutions for nonlinear elliptic PDEs with fractional Laplacians on open balls |
| topic | Analysis of PDEs Probability 35J15, 35J25, 35J60, 35R11, 35B65, 60J85, 60G51, 60G52, 65C05, 33C05 |
| url | https://arxiv.org/abs/2110.09941 |