Preface to the English Edition
Preface to the Chinese Edition
Chapter 1 Certain Ergodic Properties of a Differential System
on a Compact Differentiable Manifold
1.1 One-parameter Transformation Groups on Frame Bundles
1.2 Covariant Differentiation, the Function wk（a）
1.3 The Function log sk（t）
1.4 The Style Number k*（F）
1.5 On the Determination of the Style Number
1.6 Comparison of Certain Functions
1.7 3-dimensional Systems with Degenerate Style Numbers
1.8 Square Matrix Ra（t） and Divergence divS
References
Chapter 2 Standard Systems of Differential Equations
2.1 A Review of Standard Systems of Differential Equations
2.2 Another Class of Standard Systems of Differential Equations
2.3 Families Mn of Differential Equations
2.4 An Application
References
Chapter 3 Obstruction Sets and Strong Transversality Condition
3.1 Introduction
3.2 The Obstruction Set Ob（S）
3.3 Statement of Results
3.4 Trough Sets
References
Chapter 4 Obstruction Sets （I）
4.1 Trough Sets
4.2 Obstruction Set Ob（S）
4.3 Singularities
4.4 Linear Theory of Normal Sets
4.5 Linear Theory of Normal Sets （continued）
References
Chapter 5 On the Stability Conjecture
5.1 Introduction and Statements of the Main Results
5.2 The Class ? of Vector Fields
5.3 Contractible Periodic Orbits
5.4 The Case?
5.5 The "Sifting" Lemma and the Proof of Theorem 5.4.1
5.6 Proofs of Theorems 5.1.1 and 5.1.2
Appendix
References
Chapter 6 Obstruction Sets （II）
6.1 Introduction
6.2 Obstruction Sets and Minimal Rambling Sets
6.3 Simply Minimal Rambling Sets
6.4 The Set ? and the Hunched Set ? of ?
6.5 Non-Simply Minimal Rambling Sets of ? and
Proofs of Theorem 6.1.1 and 6.1.2
6.6 On the Sets R（s,p） and L（s,p）
References
Chapter 7 Standard Systems of Differential Equations and
Obstruction Sets with Applications to Structural
Stability Problems
7.1 Global Linearization of Differential Systems and Expression by Linear Systems
7.2 Standard Systems of Equations
7.3 A Reduction to Lower Dimension by 1
7.4 Examples of Applications
7.5 The Family 2'* of Differential Systems
7.6 Obstruction Sets
7.7 Simple and Non-Simple Minimal Rambling Sets
7.8 Stability and Structural Stability
References .
Chapter 8 On Characterizations of Structural Stability
8.1 Introduction
8.2 Preliminaries. Obstruction Sets and Minimal Rambling Sets
8.3 A Key Step
8.4 Applications
References
Appendix to the Chinese Edition
References
Supplement （October 1990）
Appendix A An Extension of the C1 Closing Lemma
A.1 Introduction
A.2 An Abstract of the Proof
A.3 Some Preliminaries
A.4 The Family of Squared Matrices
A.5 The Proof of Theorem I
A.6 The Proof of Theorem II
A.7 Standard Systems of Differential Equations
A.8 The Proof of the Main Theorem
A.9 The Case that ? is Non-empty
References
Appendix B Obstruction Sets, Minimal Rambling Sets and Their Applications
B.1 Obstruction Sets
B.2 Relations between Obstruction Sets and Transversality Conditions
B.3 A Filtration for Normal Sets
B.4 Minimal Rambling Sets
B.5 The Families X**（Mn） and X （Mn）
B.6 On Stability of Differential Systems
References
Editor's Postscripts
The modern study of Differentiable Dynamical Systems began in the early sixties of this century. This began with the articles of M. Peixoto in 1959 and 1962, which deal with structural stability of 2-dimensional differential systems. The articles retreat the results announced by A. Andronov and L. Pontrjagin in 1937, extend them to closed surfaces, and add to them a new content concerning density properties. This attracted people's attention. It was mentioned in the introductionof his first article that "-- .Therefore it seems natural to expect that a fruitful field of research lies in this direction". A natural question hence arisen: How about the case of dimensions higher than two? Since then, early or late, a number of mathematicians in the world, especially S. Smale, started their important research and probe on this topic.
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