Frequency-Domain Approach to Hopf Bifurcation Analysis

This book is devoted to the study of an effective frequency-domain approach, based on systems control theory, to compute and analyze several types of standard bifurcation conditions for general continuous-time nonlinear dynamical systems. A very rich pictorial gallery of local bifurcation diagrams for such nonlinear systems under simultaneous variations of several system parameters is presented. Some higher-order harmonic balance approximation formulas are derived for analyzing the oscillatory dynamics in small neighborhoods of certain types of Hopf and degenerate Hopf bifurcations.

The frequency-domain approach is then extended to the large class of delay-differential equations, where the time delays can be either discrete or distributed. For the case of discrete delays, two alternatives are presented, depending on the structure of the underlying dynamical system, where the more general setting is then extended to the case of distributed time-delayed systems. Some representative examples in engineering and biology are discussed.
Contents: Stability and Bifurcation AnalysisThe Hopf Bifurcation Theorem in the Frequency DomainAnalysis of Static and Multiple BifurcationsDegenerate Hopf BifurcationsHigher-Order Hopf Bifurcation FormulasHopf Bifurcation in Continuous-Time Systems with Discrete-Time DelaysHopf Bifurcation in Continuous-Time Systems with Distributed Time DelaysDegenerate Bifurcations in Time-Delayed Systems
Readership: Graduate students and researchers interested in nonlinear dynamics, control systems and applied mathematics for engineering systems.Hopf Bifurcation;Delayed Feedback Systems;Harmonic Balance;Control Systems0Key Features:Offers an enlightening graphical representation for several types of Hopf and degenerate Hopf bifurcationsEnables the approximation of a periodic solution with higher-order precision in the vicinity of the singularity through the methodologyPresents a unified view for nonlinear control systems by using the harmonic balance method for continuous time-delayed feedback systems