A Sub-Supersolution Approach for Robin Boundary Value Problems with Full Gradient Dependence

The paper investigates a nonlinear elliptic problem with a Robin boundary condition, which exhibits a convection term with full dependence on the solution and its gradient. A sub- supersolution approach is developed for this type of problems. The main result establishes the existence of a solution e...

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Main Authors: Dumitru Motreanu, Angela Sciammetta, Elisabetta Tornatore
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/8/5/658
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author Dumitru Motreanu
Angela Sciammetta
Elisabetta Tornatore
author_facet Dumitru Motreanu
Angela Sciammetta
Elisabetta Tornatore
author_sort Dumitru Motreanu
collection DOAJ
description The paper investigates a nonlinear elliptic problem with a Robin boundary condition, which exhibits a convection term with full dependence on the solution and its gradient. A sub- supersolution approach is developed for this type of problems. The main result establishes the existence of a solution enclosed in the ordered interval formed by a sub-supersolution. The result is applied to find positive solutions.
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spelling doaj.art-a011835d00674bdda05bed516b7031182023-11-19T22:49:10ZengMDPI AGMathematics2227-73902020-04-018565810.3390/math8050658A Sub-Supersolution Approach for Robin Boundary Value Problems with Full Gradient DependenceDumitru Motreanu0Angela Sciammetta1Elisabetta Tornatore2Department of Mathematics, University of Perpignan, 66860 Perpignan, FranceDepartment of Mathematics and Computer Science, University of Palermo, 90123 Palermo, ItalyDepartment of Mathematics and Computer Science, University of Palermo, 90123 Palermo, ItalyThe paper investigates a nonlinear elliptic problem with a Robin boundary condition, which exhibits a convection term with full dependence on the solution and its gradient. A sub- supersolution approach is developed for this type of problems. The main result establishes the existence of a solution enclosed in the ordered interval formed by a sub-supersolution. The result is applied to find positive solutions.https://www.mdpi.com/2227-7390/8/5/658nonlinear elliptic problemRobin boundary conditiongradient dependencesub-supersolutionpositive solution
spellingShingle Dumitru Motreanu
Angela Sciammetta
Elisabetta Tornatore
A Sub-Supersolution Approach for Robin Boundary Value Problems with Full Gradient Dependence
Mathematics
nonlinear elliptic problem
Robin boundary condition
gradient dependence
sub-supersolution
positive solution
title A Sub-Supersolution Approach for Robin Boundary Value Problems with Full Gradient Dependence
title_full A Sub-Supersolution Approach for Robin Boundary Value Problems with Full Gradient Dependence
title_fullStr A Sub-Supersolution Approach for Robin Boundary Value Problems with Full Gradient Dependence
title_full_unstemmed A Sub-Supersolution Approach for Robin Boundary Value Problems with Full Gradient Dependence
title_short A Sub-Supersolution Approach for Robin Boundary Value Problems with Full Gradient Dependence
title_sort sub supersolution approach for robin boundary value problems with full gradient dependence
topic nonlinear elliptic problem
Robin boundary condition
gradient dependence
sub-supersolution
positive solution
url https://www.mdpi.com/2227-7390/8/5/658
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