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2012 | Book

Normal Forms, Melnikov Functions and Bifurcations of Limit Cycles

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About this book

Dynamical system theory has developed rapidly over the past fifty years. It is a subject upon which the theory of limit cycles has a significant impact for both theoretical advances and practical solutions to problems. Hopf bifurcation from a center or a focus is integral to the theory of bifurcation of limit cycles, for which normal form theory is a central tool. Although Hopf bifurcation has been studied for more than half a century, and normal form theory for over 100 years, efficient computation in this area is still a challenge with implications for Hilbert’s 16th problem.

This book introduces the most recent developments in this field and provides major advances in fundamental theory of limit cycles. Split into two parts, the first focuses on the study of limit cycles bifurcating from Hopf singularity using normal form theory with later application to Hilbert’s 16th problem, while the second considers near Hamiltonian systems using Melnikov function as the main mathematical tool.

Classic topics with new results are presented in a clear and concise manner and are accompanied by the liberal use of illustrations throughout. Containing a wealth of examples and structured algorithms that are treated in detail, a good balance between theoretical and applied topics is demonstrated. By including complete Maple programs within the text, this book also enables the reader to reconstruct the majority of formulas provided, facilitating the use of concrete models for study.

Through the adoption of an elementary and practical approach, this book will be of use to graduate mathematics students wishing to study the theory of limit cycles as well as scientists, across a number of disciplines, with an interest in the applications of periodic behavior.

Table of Contents

Frontmatter
Chapter 1. Introduction
Abstract
Chapter 1 is an introduction, presenting the background for nonlinear dynamics, bifurcation and stability, normal form method, Melnikov function and Hilbert’s 16th problem.
Maoan Han, Pei Yu
Chapter 2. Hopf Bifurcation and Normal Form Computation
Abstract
In Chap. 2, computation of normal forms are discussed. First, a general approach is presented, which combines the center manifold theory to the computation of normal form. A perturbation method, which has been proved efficient in computation, is then discussed in detail.
Maoan Han, Pei Yu
Chapter 3. Comparison of Methods for Computing Focus Values
Abstract
Chapter 3 is devoted to studying the computation efficiency of existing methods for computing focus values. Three typical methods, namely the Poincaré method or Takens method, the perturbation technique, and the singular point value method are discussed. These three methods are shown to have the same order of computational complexity; no method has been developed so far for computing the ‘minimal singular point values’.
Maoan Han, Pei Yu
Chapter 4. Application (I)—Hilbert’s 16th Problem
Abstract
In Chap. 4, Hopf bifurcation and computation of normal forms are applied to consider planar vector fields and focus on the well-known Hilbert’s 16th problem. Attention is given to general cubic order and higher order systems are considered to find the maximal number of limit cycles possible for such systems i.e., to find the lower bound of the Hilbert number for certain vector fields. The Liénard system is also investigated and critical periods of bifurcating periodic solutions from two special type of planar systems are studied.
Maoan Han, Pei Yu
Chapter 5. Application (II)—Practical Problems
Abstract
Chapter 5 focuses on the application of Hopf bifurcation theory and normal form computation to practical problems, including those from engineering and biological systems, as well as problems arising from Hopf bifurcation control area.
Maoan Han, Pei Yu
Chapter 6. Fundamental Theory of the Melnikov Function Method
Abstract
Chapter 6 introduces the fundamental theory of Melnikov function method. Basic definitions and fundamental lemmas are presented. A main theory on the number of limit cycles is given.
Maoan Han, Pei Yu
Chapter 7. Limit Cycle Bifurcations Near a Center
Abstract
In Chap. 7, particular attention is given to bifurcation of limit cycles near a center. After normalizing the Hamiltonian function, detailed steps for computing the Melnikov function are described and formulas are given. Maple programs for computing the coefficients of the Melnikov function are developed and illustrative examples are presented.
Maoan Han, Pei Yu
Chapter 8. Limit Cycles Near a Homoclinic or Heteroclinic Loop
Abstract
Chapter 8 considers bifurcation of limit cycles near a homoclinic or heteroclinic loop. The method of computing the Melnikov functions near a homoclinic or heteroclinic loop is developed and explicit formulae for the coefficients in the expansion of the Melnikov function are derived. Double homoclinic loop is also studied in this chapter.
Maoan Han, Pei Yu
Chapter 9. Finding More Limit Cycles Using Melnikov Functions
Abstract
In Chap. 9, an idea for finding more limit cycles is introduced, which combines the bifurcation of limit cycles from centers, homoclinic and heteroclinic loops. A generalized theorem is presented. In particular, two polynomial systems are studied. By using the theorems and results obtained in Chaps. 6–9 it is shown that one system can have seven limit cycles while the other can have five limit cycles.
Maoan Han, Pei Yu
Chapter 10. Limit Cycle Bifurcations in Equivariant Systems
Abstract
Chapter 10 investigates bifurcation of limit cycles in equivariant systems, including S-equivariant vector fields, Z q -equivariant vector and S q -reversible vector fields. An S-equivariant quadratic system, a Z 3-equivariant system and a cubic (2π/3)-equivariant system are studied.
Maoan Han, Pei Yu
Backmatter
Metadata
Title
Normal Forms, Melnikov Functions and Bifurcations of Limit Cycles
Authors
Maoan Han
Pei Yu
Copyright Year
2012
Publisher
Springer London
Electronic ISBN
978-1-4471-2918-9
Print ISBN
978-1-4471-2917-2
DOI
https://doi.org/10.1007/978-1-4471-2918-9

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