Editorial: Dynamics on delayed systems
In the representation of natural and social phenomena,there exist not only ordinary or partial differential equations which are independent of the past states and determined solely by the present states,but also time delay differential equations which are related to some of the past states.Time delay is ubiquitous in mechanical,physical,ecological,physiological,biological,economic,electronic,and chemical systems due to finite propagation speeds of signals,finite reaction times,and finite processing times.These realistic backgrounds drive various investigations to consider effects of time delays on realistic phenomena which are modeled by delay differential equations.It is impossible to make achievements only by extending theory of ordinary or partial differential equations since time delay is of uncertainty in time scale.Therefore,the study will be very difficult for a problem in the infinite-dimensional space.
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2014-01-03（万方平台首次上网日期，不代表论文的发表时间）
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