Multiple periodic solutions of differential delay systems with 2k lags

Li Zhang; Huihui Pang; Weigao Ge

doi:10.3934/math.2021399

AIMS Mathematics (Apr 2021)

Multiple periodic solutions of differential delay systems with 2k lags

Li Zhang,
Huihui Pang ,
Weigao Ge

Affiliations

Li Zhang: 1. Institute of Fundamental and Interdisciplinary Sciences, Institute of Mathematics and Physics, Beijing Union University, Beijing 100101, China
Huihui Pang: 2. College of Science, China Agricultural University, Beijing 100083, China
Weigao Ge: 3. School of Mathematics and Statistics, Beijing Institute of Technology, Beijing 100081, China

DOI: https://doi.org/10.3934/math.2021399
Journal volume & issue: Vol. 6, no. 7
pp. 6815 – 6832

Abstract

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The quantity of 2(2k+1)-periodic solutions to a specific differential delay system with 2k lags is studied and resolved by variational methods. Several results are revealed and two examples are given to illustrate the application of the main results.

Published in AIMS Mathematics

ISSN: 2473-6988 (Online)
Publisher: AIMS Press
Country of publisher: United States
LCC subjects: Science: Mathematics
Website: http://www.aimspress.com/journal/Math

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