Boundary Singularities of Solutions to Semilinear Fractional Equations

We prove the existence of a solution of (-Δ)s⁢u+f⁢(u)=0{(-\Delta)^{s}u+f(u)=0} in a smooth bounded domain Ω with a prescribed boundary value μ in the class of Radon measures for a large class of continuous functions f satisfying a weak singularity condition expressed under an integral form. We study...

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Main Authors: Nguyen Phuoc-Tai, Véron Laurent
Format: Article
Language:English
Published: De Gruyter 2018-04-01
Series:Advanced Nonlinear Studies
Subjects:
Online Access:https://doi.org/10.1515/ans-2017-6048
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author Nguyen Phuoc-Tai
Véron Laurent
author_facet Nguyen Phuoc-Tai
Véron Laurent
author_sort Nguyen Phuoc-Tai
collection DOAJ
description We prove the existence of a solution of (-Δ)s⁢u+f⁢(u)=0{(-\Delta)^{s}u+f(u)=0} in a smooth bounded domain Ω with a prescribed boundary value μ in the class of Radon measures for a large class of continuous functions f satisfying a weak singularity condition expressed under an integral form. We study the existence of a boundary trace for positive moderate solutions. In the particular case where f⁢(u)=up{f(u)=u^{p}} and μ is a Dirac mass, we show the existence of several critical exponents p. We also demonstrate the existence of several types of separable solutions of the equation (-Δ)s⁢u+up=0{(-\Delta)^{s}u+u^{p}=0} in ℝ+N{\mathbb{R}^{N}_{+}}.
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spelling doaj.art-5c3164a8fe8d463cbe977205931621fa2022-12-22T04:21:24ZengDe GruyterAdvanced Nonlinear Studies1536-13652169-03752018-04-0118223726710.1515/ans-2017-6048Boundary Singularities of Solutions to Semilinear Fractional EquationsNguyen Phuoc-Tai0Véron Laurent1Department of Mathematics and Statistics, Masaryk University, 611 37Brno, Czech RepublicLaboratoire de Mathématiques et Physique Théorique, Faculté des Sciences, Université François Rabelais, 37200Tours, FranceWe prove the existence of a solution of (-Δ)s⁢u+f⁢(u)=0{(-\Delta)^{s}u+f(u)=0} in a smooth bounded domain Ω with a prescribed boundary value μ in the class of Radon measures for a large class of continuous functions f satisfying a weak singularity condition expressed under an integral form. We study the existence of a boundary trace for positive moderate solutions. In the particular case where f⁢(u)=up{f(u)=u^{p}} and μ is a Dirac mass, we show the existence of several critical exponents p. We also demonstrate the existence of several types of separable solutions of the equation (-Δ)s⁢u+up=0{(-\Delta)^{s}u+u^{p}=0} in ℝ+N{\mathbb{R}^{N}_{+}}.https://doi.org/10.1515/ans-2017-6048semilinear fractional equationsboundary trace35j66 35j67 35r06 35r11
spellingShingle Nguyen Phuoc-Tai
Véron Laurent
Boundary Singularities of Solutions to Semilinear Fractional Equations
Advanced Nonlinear Studies
semilinear fractional equations
boundary trace
35j66
35j67
35r06
35r11
title Boundary Singularities of Solutions to Semilinear Fractional Equations
title_full Boundary Singularities of Solutions to Semilinear Fractional Equations
title_fullStr Boundary Singularities of Solutions to Semilinear Fractional Equations
title_full_unstemmed Boundary Singularities of Solutions to Semilinear Fractional Equations
title_short Boundary Singularities of Solutions to Semilinear Fractional Equations
title_sort boundary singularities of solutions to semilinear fractional equations
topic semilinear fractional equations
boundary trace
35j66
35j67
35r06
35r11
url https://doi.org/10.1515/ans-2017-6048
work_keys_str_mv AT nguyenphuoctai boundarysingularitiesofsolutionstosemilinearfractionalequations
AT veronlaurent boundarysingularitiesofsolutionstosemilinearfractionalequations