Geodesic
Bifurcation of periodic solutions of the Mackey--Glass equation
Modelirovanie i analiz informacionnyh sistem, Tome 23 (2016) no. 6, pp. 784-803

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We study the bifurcation of the equilibrium states of periodic solutions for the Mackey–Glass equation. This equation is considered as a mathematical model of changes in the density of white blood cells. The equation written in dimensionless variables contains a small parameter at the derivative, which makes it singular. We applied the method of uniform normalization, which allows us to reduce the study of the solutions behavior in the neighborhood of the equilibrium state to the analysis of the countable system of ordinary differential equations. We poot out the equations in “fast” and “slow” variables from this system. Equilibrium states of the “slow” variables equations determine the periodic solutions. The analysis of equilibrium states allows us to study the bifurcation of periodic solutions depending on the parameters of the equation and their stability. The possibility of simultaneous bifurcation of a large number of stable periodic solutions is shown. This situation is called the multistability phenomenon.
Keywords: the Mackey–Glass equation, periodic solutions, multistability bifurcation. 
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     author = {E. P. Kubyshkin and A. R. Moryakova},
     title = {Bifurcation of periodic solutions of the {Mackey--Glass} equation},
     journal = {Modelirovanie i analiz informacionnyh sistem},
     pages = {784--803},
     publisher = {mathdoc},
     volume = {23},
     number = {6},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAIS_2016_23_6_a9/}
}
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E. P. Kubyshkin; A. R. Moryakova. Bifurcation of periodic solutions of the Mackey--Glass equation. Modelirovanie i analiz informacionnyh sistem, Tome 23 (2016) no. 6, pp. 784-803. http://geodesic.mathdoc.fr/item/MAIS_2016_23_6_a9/