Papers › Using Symbolic Computation to Analyze Zero-Hopf Bifurcations of Polynomial Differential Systems
Using Symbolic Computation to Analyze Zero-Hopf Bifurcations of Polynomial Differential Systems
Bo Huang
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This paper is devoted to the study of infinitesimal limit cycles that can bifurcate from zero-Hopf equilibria of differential systems based on the averaging method. We develop an efficient symbolic program using Maple for computing the averaged functions of any order for continuous differential systems in arbitrary dimension. The program allows us to systematically analyze zero-Hopf bifurcations of polynomial differential systems using symbolic computation methods. We show that for the first-order averaging, ℓ∈{0,1,…,2ⁿ⁻³} limit cycles can bifurcate from the zero-Hopf equilibrium for the general class of perturbed differential systems and up to the second-order averaging, the maximum number of limit cycles can be determined by computing the mixed volume of a polynomial system obtained from the averaged functions. A number of examples are presented to demonstrate the effectiveness of the proposed algorithmic approach.
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