On the solvability of a higher-order semilinear ODE

The existence of at least one or two nontrivial solutions to a general higher-order boundary value problem is established by using variational tools. Two of the results are obtained without any asymptotic behaviour at infinity of potential $F$ of the nonlinear term $f$, which is a key condition i...

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Main Author: Cristian-Paul Danet
Format: Article
Language:English
Published: University of Szeged 2024-10-01
Series:Electronic Journal of Qualitative Theory of Differential Equations
Subjects:
Online Access:http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=10935
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author Cristian-Paul Danet
author_facet Cristian-Paul Danet
author_sort Cristian-Paul Danet
collection DOAJ
description The existence of at least one or two nontrivial solutions to a general higher-order boundary value problem is established by using variational tools. Two of the results are obtained without any asymptotic behaviour at infinity of potential $F$ of the nonlinear term $f$, which is a key condition in the available literature, when applying critical point theorems. Moreover, $F$ may change sign. The last result is stated when the nonlinearity has asymptotic behaviour at both infinity and zero.
format Article
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institution Kabale University
issn 1417-3875
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publishDate 2024-10-01
publisher University of Szeged
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series Electronic Journal of Qualitative Theory of Differential Equations
spelling doaj-art-783c4bad7140421196416d6bd88726802025-01-15T21:24:59ZengUniversity of SzegedElectronic Journal of Qualitative Theory of Differential Equations1417-38752024-10-0120245711710.14232/ejqtde.2024.1.5710935On the solvability of a higher-order semilinear ODECristian-Paul Danet0University of Craiova, Craiova, RomaniaThe existence of at least one or two nontrivial solutions to a general higher-order boundary value problem is established by using variational tools. Two of the results are obtained without any asymptotic behaviour at infinity of potential $F$ of the nonlinear term $f$, which is a key condition in the available literature, when applying critical point theorems. Moreover, $F$ may change sign. The last result is stated when the nonlinearity has asymptotic behaviour at both infinity and zero.http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=10935odehigher-ordersemilinearbrézis–nirenberg's linking theoremmountain pass theoremvariational method
spellingShingle Cristian-Paul Danet
On the solvability of a higher-order semilinear ODE
Electronic Journal of Qualitative Theory of Differential Equations
ode
higher-order
semilinear
brézis–nirenberg's linking theorem
mountain pass theorem
variational method
title On the solvability of a higher-order semilinear ODE
title_full On the solvability of a higher-order semilinear ODE
title_fullStr On the solvability of a higher-order semilinear ODE
title_full_unstemmed On the solvability of a higher-order semilinear ODE
title_short On the solvability of a higher-order semilinear ODE
title_sort on the solvability of a higher order semilinear ode
topic ode
higher-order
semilinear
brézis–nirenberg's linking theorem
mountain pass theorem
variational method
url http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=10935
work_keys_str_mv AT cristianpauldanet onthesolvabilityofahigherordersemilinearode