On the Number of Periodic Orbits to Odd Order Differential Delay Systems

Autor: Weigao Ge, Lin Li
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Mathematics, Vol 8, Iss 10, p 1731 (2020)
Druh dokumentu: article
ISSN: 2227-7390
DOI: 10.3390/math8101731
Popis: In this paper, we study the periodic orbits of a type of odd order differential delay system with 2k−1 lags via the S1 index theory and the variational method. This type of system has not been studied by others. Our results provide a new and more accurate method for counting the number of periodic orbits.
Databáze: Directory of Open Access Journals
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