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Advanced Nonlinear Studies
Article . 2017 . Peer-reviewed
License: CC BY
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Advanced Nonlinear Studies
Article . 2017
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zbMATH Open
Article . 2017
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A Counterexample for Singular Equations with Indefinite Weight

A counterexample for singular equations with indefinite weight
Authors: Ureña Antonio J.;

A Counterexample for Singular Equations with Indefinite Weight

Abstract

Abstract We construct a second-order equation x ¨ = h ⁢ ( t ) / x p {\ddot{x}=h(t)/x^{p}} , with p > 1 {p>1} and the sign-changing, periodic weight function h having negative mean, which does not have periodic solutions. This contrasts with earlier results which state that, in many cases, such periodic problems are solvable.

Related Organizations
Keywords

singular equations, Nonlinear boundary value problems for ordinary differential equations, Singular nonlinear boundary value problems for ordinary differential equations, QA1-939, 34b16, 34b15, periodic solutions, Periodic solutions to ordinary differential equations, indefinite weight, Mathematics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
9
Top 10%
Average
Top 10%
gold