Sufficient conditions for the existence of non-oscillatory solutions to first-order differential equations with multiple advanced arguments

This article concerns the existence of non-oscillatory solutions to the equation $$ x'(t)=\sum_{k=1}^m a_k(t) x(h_k(t)), $$ where $a_k\geq 0$ and $h_k(t)\geq t$. We generalize existing results and then give an answer to the open question stated in [4]. Moreover we present a new condition...

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Main Author: Julio G. Dix
Format: Article
Language:English
Published: Texas State University 2018-10-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2018/177/abstr.html
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author Julio G. Dix
author_facet Julio G. Dix
author_sort Julio G. Dix
collection DOAJ
description This article concerns the existence of non-oscillatory solutions to the equation $$ x'(t)=\sum_{k=1}^m a_k(t) x(h_k(t)), $$ where $a_k\geq 0$ and $h_k(t)\geq t$. We generalize existing results and then give an answer to the open question stated in [4]. Moreover we present a new condition based on the integral of $(\sum a_k)^2$.
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spelling doaj.art-268660ef098047498ce53bcee22417462022-12-21T18:52:25ZengTexas State UniversityElectronic Journal of Differential Equations1072-66912018-10-012018177,19Sufficient conditions for the existence of non-oscillatory solutions to first-order differential equations with multiple advanced argumentsJulio G. Dix0 Texas State Univ. San Marcos, TX, USA This article concerns the existence of non-oscillatory solutions to the equation $$ x'(t)=\sum_{k=1}^m a_k(t) x(h_k(t)), $$ where $a_k\geq 0$ and $h_k(t)\geq t$. We generalize existing results and then give an answer to the open question stated in [4]. Moreover we present a new condition based on the integral of $(\sum a_k)^2$.http://ejde.math.txstate.edu/Volumes/2018/177/abstr.htmlAdvanced linear differential equationpositive solutionoscillatory solution
spellingShingle Julio G. Dix
Sufficient conditions for the existence of non-oscillatory solutions to first-order differential equations with multiple advanced arguments
Electronic Journal of Differential Equations
Advanced linear differential equation
positive solution
oscillatory solution
title Sufficient conditions for the existence of non-oscillatory solutions to first-order differential equations with multiple advanced arguments
title_full Sufficient conditions for the existence of non-oscillatory solutions to first-order differential equations with multiple advanced arguments
title_fullStr Sufficient conditions for the existence of non-oscillatory solutions to first-order differential equations with multiple advanced arguments
title_full_unstemmed Sufficient conditions for the existence of non-oscillatory solutions to first-order differential equations with multiple advanced arguments
title_short Sufficient conditions for the existence of non-oscillatory solutions to first-order differential equations with multiple advanced arguments
title_sort sufficient conditions for the existence of non oscillatory solutions to first order differential equations with multiple advanced arguments
topic Advanced linear differential equation
positive solution
oscillatory solution
url http://ejde.math.txstate.edu/Volumes/2018/177/abstr.html
work_keys_str_mv AT juliogdix sufficientconditionsfortheexistenceofnonoscillatorysolutionstofirstorderdifferentialequationswithmultipleadvancedarguments