Global Bifurcation of Periodic Solutions in Delay Equations with Symmetric Monotone Feedback

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1. Verfasser: López-Nieto, A.
Format: Preprint
Veröffentlicht: 2020
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author López-Nieto, A.
author_facet López-Nieto, A.
contents We study the periodic solutions of the delay equation $\dot{x}(t)=f(x(t),x(t-1))$, where $f$ scalar is strictly monotone in the delayed component and has even-odd symmetry. We completely describe the global bifurcation structure of periodic solutions via a period map originating from planar ordinary differential equations. Moreover, we prove that the first derivative of the period map determines the local stability of the periodic orbits. This article builds on the pioneering work of Kaplan and Yorke, who found some symmetric periodic solutions for $f$ with even-odd symmetry. We enhance their results by proving that all periodic solutions are symmetric if $f$ is in addition monotone.
format Preprint
id arxiv_https___arxiv_org_abs_2002_01313
institution arXiv
publishDate 2020
record_format arxiv
spellingShingle Global Bifurcation of Periodic Solutions in Delay Equations with Symmetric Monotone Feedback
López-Nieto, A.
Dynamical Systems
34K04, 34K13, 34K18, 34K20, 37C27
We study the periodic solutions of the delay equation $\dot{x}(t)=f(x(t),x(t-1))$, where $f$ scalar is strictly monotone in the delayed component and has even-odd symmetry. We completely describe the global bifurcation structure of periodic solutions via a period map originating from planar ordinary differential equations. Moreover, we prove that the first derivative of the period map determines the local stability of the periodic orbits. This article builds on the pioneering work of Kaplan and Yorke, who found some symmetric periodic solutions for $f$ with even-odd symmetry. We enhance their results by proving that all periodic solutions are symmetric if $f$ is in addition monotone.
title Global Bifurcation of Periodic Solutions in Delay Equations with Symmetric Monotone Feedback
topic Dynamical Systems
34K04, 34K13, 34K18, 34K20, 37C27
url https://arxiv.org/abs/2002.01313