Monotonicity conditions in oscillation to superlinear differential equations

We consider the second order differential equation \[ \bigl(a(t)|x^{\prime}|^{\alpha}\operatorname{sgn\,}x^{\prime}\bigr)^{\prime }+b(t)|x|^{\beta}\operatorname{sgn\,}x=0 \] in the super-linear case $\alpha<\beta$. We prove the existence of the so-called intermediate solutions and we discuss thei...

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Main Authors: Zuzana Dosla, Mauro Marini
Format: Article
Language:English
Published: University of Szeged 2016-07-01
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=4792
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author Zuzana Dosla
Mauro Marini
author_facet Zuzana Dosla
Mauro Marini
author_sort Zuzana Dosla
collection DOAJ
description We consider the second order differential equation \[ \bigl(a(t)|x^{\prime}|^{\alpha}\operatorname{sgn\,}x^{\prime}\bigr)^{\prime }+b(t)|x|^{\beta}\operatorname{sgn\,}x=0 \] in the super-linear case $\alpha<\beta$. We prove the existence of the so-called intermediate solutions and we discuss their coexistence with other types of nonoscillatory and oscillatory solutions. Our results are new even for the Emden-Fowler equation ($\alpha=1$).
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spelling doaj.art-e186f6e31af64f4f8f3deefd3f351ed82023-05-09T07:53:05ZengUniversity of SzegedElectronic Journal of Qualitative Theory of Differential Equations1417-38752016-07-0120165411310.14232/ejqtde.2016.1.544792Monotonicity conditions in oscillation to superlinear differential equationsZuzana Dosla0Mauro Marini1Masaryk University, Brno, Czech RepublicUniversity of Florence, Firenze, ItalyWe consider the second order differential equation \[ \bigl(a(t)|x^{\prime}|^{\alpha}\operatorname{sgn\,}x^{\prime}\bigr)^{\prime }+b(t)|x|^{\beta}\operatorname{sgn\,}x=0 \] in the super-linear case $\alpha<\beta$. We prove the existence of the so-called intermediate solutions and we discuss their coexistence with other types of nonoscillatory and oscillatory solutions. Our results are new even for the Emden-Fowler equation ($\alpha=1$).http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=4792second order nonlinear differential equationnonoscillatory solutionoscillatory solutionintermediate solution
spellingShingle Zuzana Dosla
Mauro Marini
Monotonicity conditions in oscillation to superlinear differential equations
Electronic Journal of Qualitative Theory of Differential Equations
second order nonlinear differential equation
nonoscillatory solution
oscillatory solution
intermediate solution
title Monotonicity conditions in oscillation to superlinear differential equations
title_full Monotonicity conditions in oscillation to superlinear differential equations
title_fullStr Monotonicity conditions in oscillation to superlinear differential equations
title_full_unstemmed Monotonicity conditions in oscillation to superlinear differential equations
title_short Monotonicity conditions in oscillation to superlinear differential equations
title_sort monotonicity conditions in oscillation to superlinear differential equations
topic second order nonlinear differential equation
nonoscillatory solution
oscillatory solution
intermediate solution
url http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=4792
work_keys_str_mv AT zuzanadosla monotonicityconditionsinoscillationtosuperlineardifferentialequations
AT mauromarini monotonicityconditionsinoscillationtosuperlineardifferentialequations