ArticleOriginal scientific text
Title
Periodic dynamics in a model of immune system
Authors , 1
Affiliations
- Institute of Applied Mathematics and Mechanics, Department of Mathematics, Computer Sciences and Mechanics, Warsaw University, Banacha 2, 02-097 Warszawa, Poland
Abstract
The aim of this paper is to study periodic solutions of Marchuk's model, i.e. the system of ordinary differential equations with time delay describing the immune reactions. The Hopf bifurcation theorem is used to show the existence of a periodic solution for some values of the delay. Periodic dynamics caused by periodic immune reactivity or periodic initial data functions are compared. Autocorrelation functions are used to check the periodicity or quasiperiodicity of behaviour.
Keywords
autocorrelation function, antibody, antigen, immune system organ-target, Hopf bifurcation, plasma cell, periodicity
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