摘要
We provide sufficient conditions for the existence of periodic orbits of some systems of delay differential equations with a unique delay. We extend Kaplan-Yorke＇s method for finding periodic orbits from a delay differential equation with several delays to a system of delay differential equations with a unique delay.
We provide sufficient conditions for the existence of periodic orbits of some systems of delay differential equations with a unique delay. We extend Kaplan-Yorke＇s method for finding periodic orbits from a delay differential equation with several delays to a system of delay differential equations with a unique delay.
基金
MCYT/FEDER Grant No.MTM2005-06098-C02-01
a CICYT Grant No.2005SGR 00550
a Marie Curie Grant No.HPMT-CT-2001-00247
