Minimal Lp-solutions to singular sublinear elliptic problems

We solve the existence problem for the minimal positive solutions u∈Lp(Ω,dx) to the Dirichlet problems for sublinear elliptic equations of the form Lu=σuq+μinΩ,lim infx→yu(x)=0y∈∂∞Ω,where 0<q<1 and Lu≔−div(A(x)∇u) is a linear uniformly elliptic operator with bounded measurable coefficients. Th...

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Main Authors: Aye Chan May, Adisak Seesanea
Format: Article
Language:English
Published: Elsevier 2024-02-01
Series:Results in Applied Mathematics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590037423000675
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author Aye Chan May
Adisak Seesanea
author_facet Aye Chan May
Adisak Seesanea
author_sort Aye Chan May
collection DOAJ
description We solve the existence problem for the minimal positive solutions u∈Lp(Ω,dx) to the Dirichlet problems for sublinear elliptic equations of the form Lu=σuq+μinΩ,lim infx→yu(x)=0y∈∂∞Ω,where 0<q<1 and Lu≔−div(A(x)∇u) is a linear uniformly elliptic operator with bounded measurable coefficients. The coefficient σ and data μ are nonnegative Radon measures on an arbitrary domain Ω⊂Rn with a positive Green function associated with L. Our techniques are based on the use of sharp Green potential pointwise estimates, weighted norm inequalities, and norm estimates in terms of generalized energy.
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spelling doaj.art-a6c42d7aac9d41ce89c24b10cce5cc3b2024-03-16T05:09:06ZengElsevierResults in Applied Mathematics2590-03742024-02-0121100421Minimal Lp-solutions to singular sublinear elliptic problemsAye Chan May0Adisak Seesanea1School of Integrated Science and Innovation, Sirindhorn International Institute of Technology, Thammasat University, ThailandCorresponding author.; School of Integrated Science and Innovation, Sirindhorn International Institute of Technology, Thammasat University, ThailandWe solve the existence problem for the minimal positive solutions u∈Lp(Ω,dx) to the Dirichlet problems for sublinear elliptic equations of the form Lu=σuq+μinΩ,lim infx→yu(x)=0y∈∂∞Ω,where 0<q<1 and Lu≔−div(A(x)∇u) is a linear uniformly elliptic operator with bounded measurable coefficients. The coefficient σ and data μ are nonnegative Radon measures on an arbitrary domain Ω⊂Rn with a positive Green function associated with L. Our techniques are based on the use of sharp Green potential pointwise estimates, weighted norm inequalities, and norm estimates in terms of generalized energy.http://www.sciencedirect.com/science/article/pii/S2590037423000675Sublinear elliptic equationMeasure dataDivergence form operatorGreen function
spellingShingle Aye Chan May
Adisak Seesanea
Minimal Lp-solutions to singular sublinear elliptic problems
Results in Applied Mathematics
Sublinear elliptic equation
Measure data
Divergence form operator
Green function
title Minimal Lp-solutions to singular sublinear elliptic problems
title_full Minimal Lp-solutions to singular sublinear elliptic problems
title_fullStr Minimal Lp-solutions to singular sublinear elliptic problems
title_full_unstemmed Minimal Lp-solutions to singular sublinear elliptic problems
title_short Minimal Lp-solutions to singular sublinear elliptic problems
title_sort minimal lp solutions to singular sublinear elliptic problems
topic Sublinear elliptic equation
Measure data
Divergence form operator
Green function
url http://www.sciencedirect.com/science/article/pii/S2590037423000675
work_keys_str_mv AT ayechanmay minimallpsolutionstosingularsublinearellipticproblems
AT adisakseesanea minimallpsolutionstosingularsublinearellipticproblems