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Preliminaries

Chapter
Part of the Lecture Notes in Control and Information Sciences book series (LNCIS, volume 269)

Abstract

Delay systems (called also hereditary or with memory, deviating arguments, aftereffects, post actions, dead-time, or time-lag) represent a class of infinite-dimensional systems [53] largely used to describe propagation and transport phenomena or population dynamics (reproduction, development or extinction) [320, 369]. In economic systems, delays appear in a natural way since decisions and effects (investment policy, commodity markets evolution: price fluctuations, trade cycles) are separated by some (needed analysis) time interval. In communication, data transmission is always accompanied by a non-zero time interval between the initiation- and the delivery-time of a message or signal. In other cases, the presence of a delay in a system may be the result of some essential simplification of the corresponding process model.

Keywords

Erential Equation Model Transformation Delay System Delay Interval Neutral System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag London Limeted 2001

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