Positive solutions to second-order singular nonlocal problems: existence and sharp conditions

Abstract In this paper we consider sharp conditions on ω and f for the existence of C1[0,1] $C^{1}[0,1]$ positive solutions to a second-order singular nonlocal problem u″(t)+ω(t)f(t,u(t))=0 $u''(t)+\omega (t)f(t,u(t))=0$, u(0)=u(1)=∫01g(t)u(t)dt $u(0)=u(1)=\int _{0} ^{1}g(t)u(t)\,dt$; it t...

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Main Authors: Shiqi Ma, Xuemei Zhang
Format: Article
Language:English
Published: SpringerOpen 2019-10-01
Series:Boundary Value Problems
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13661-019-1289-7
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author Shiqi Ma
Xuemei Zhang
author_facet Shiqi Ma
Xuemei Zhang
author_sort Shiqi Ma
collection DOAJ
description Abstract In this paper we consider sharp conditions on ω and f for the existence of C1[0,1] $C^{1}[0,1]$ positive solutions to a second-order singular nonlocal problem u″(t)+ω(t)f(t,u(t))=0 $u''(t)+\omega (t)f(t,u(t))=0$, u(0)=u(1)=∫01g(t)u(t)dt $u(0)=u(1)=\int _{0} ^{1}g(t)u(t)\,dt$; it turns out that this case is more difficult to handle than two point boundary value problems and needs some new ingredients in the arguments. On the technical level, we adopt the topological degree method.
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spelling doaj.art-236d4d822a9a40cb868f12c52546d8682022-12-22T00:11:26ZengSpringerOpenBoundary Value Problems1687-27702019-10-012019111810.1186/s13661-019-1289-7Positive solutions to second-order singular nonlocal problems: existence and sharp conditionsShiqi Ma0Xuemei Zhang1School of Mathematics and Physics, North China Electric Power UniversitySchool of Mathematics and Physics, North China Electric Power UniversityAbstract In this paper we consider sharp conditions on ω and f for the existence of C1[0,1] $C^{1}[0,1]$ positive solutions to a second-order singular nonlocal problem u″(t)+ω(t)f(t,u(t))=0 $u''(t)+\omega (t)f(t,u(t))=0$, u(0)=u(1)=∫01g(t)u(t)dt $u(0)=u(1)=\int _{0} ^{1}g(t)u(t)\,dt$; it turns out that this case is more difficult to handle than two point boundary value problems and needs some new ingredients in the arguments. On the technical level, we adopt the topological degree method.http://link.springer.com/article/10.1186/s13661-019-1289-7Sharp conditionsSingular boundary value problems with integral boundary conditionsHölder’s inequalityFixed point theoremsPositive solutions
spellingShingle Shiqi Ma
Xuemei Zhang
Positive solutions to second-order singular nonlocal problems: existence and sharp conditions
Boundary Value Problems
Sharp conditions
Singular boundary value problems with integral boundary conditions
Hölder’s inequality
Fixed point theorems
Positive solutions
title Positive solutions to second-order singular nonlocal problems: existence and sharp conditions
title_full Positive solutions to second-order singular nonlocal problems: existence and sharp conditions
title_fullStr Positive solutions to second-order singular nonlocal problems: existence and sharp conditions
title_full_unstemmed Positive solutions to second-order singular nonlocal problems: existence and sharp conditions
title_short Positive solutions to second-order singular nonlocal problems: existence and sharp conditions
title_sort positive solutions to second order singular nonlocal problems existence and sharp conditions
topic Sharp conditions
Singular boundary value problems with integral boundary conditions
Hölder’s inequality
Fixed point theorems
Positive solutions
url http://link.springer.com/article/10.1186/s13661-019-1289-7
work_keys_str_mv AT shiqima positivesolutionstosecondordersingularnonlocalproblemsexistenceandsharpconditions
AT xuemeizhang positivesolutionstosecondordersingularnonlocalproblemsexistenceandsharpconditions