CANONICAL PERTURBATION THEORIES,
DEGENERATE SYSTEMS AND RESONANCE


Table of Contents

   Chapter 1  The Hamilton-Jacobi Theory                                    

    1.1               Canonical Pertubation Equations                                                         1

    1.2               Hamilton's Principle                                                                                2

    1.2.1           Maupertuis' Least Action Principle                                                        4

    1.2.2           Helmholtz Invariant                                                                                   5

    1.3               Canonical Transformations                                                                   6

    1.4               Lagrange Brackets                                                                                 9

    1.5               Poisson Brackets                                                                                 11

    1.5.1           Reciprocity Relations                                                                            12

    1.6               The Extended Phase Space                                                               13

    1.7               Gyroscopic Systems                                                                            15

    1.7.1           Gyroscopic Forces                                                                               15

    1.7.2           Example                                                                                                 16

    1.7.3           Rotating Frames                                                                                   17

    1.7.4           Apparent Forces                                                                                   17

    1.8               The Partial Differential Equation of Hamilton and Jacobi                18

    1.9               One-Dimensional Motion with a Generic Potential                           20

    1.9.1           The Case m<0                                                                                      23

    1.9.2           The Harmonic Oscillator                                                                       23

    1.10            Involution. Mayer's Lemma. Liouville's Theorem                               24

 

    Chapter 2 Angle-Action Variables. Separable Systems

    2.1               Periodic Motions                                                                                  29

    2.1.1           Angle--Action Variables                                                                       30

    2.1.2           The Sign of the Action                                                                          32

    2.2               Direct Construction of Angle--Action Variables                                33

    2.3               Actions in Multiperiodic Systems. Einstein's Theory                        35

    2.4               Separable Multiperiodic Systems                                                      37

    2.4.2           The Actions                                                                                            38

    2.4.3           Algorithms for Construction of the Angles                                          39

    2.4.4           Angle--Action Variables of H (q1, p1, p2­,..., pN)                                 40
                        Hint to Exercise  2.4.1 (link) 

    2.4.5           Historical Postscript                                                                              42

    2.5               Simple Separable Systems                                                                42

    2.5.1           Example: Central Motions                                                                    43

    2.5.2           Angle--Action Variables of Central Motions                                       44

    2.6               Kepler Motion                                                                                       47

    2.7               Degeneracy                                                                                          50

    2.7.1           Schwarzschild Transformation                                                             51

    2.7.2           Delaunay Variables                                                                              52

    2.8               The Separable Cases of Liouville and Stäckel                                 53

    2.8.1           Example: Liouville Systems                                                                 55

    2.8.2           Example: Stäckel Systems                                                                  56

    2.8.3           Example: Central Motions                                                                    56

    2.9               Angle--Action Variables of a Quadratic Hamiltonian                       57

    2.9.1           Gyroscopic Systems                                                                             60

 

   Chapter 3  Classical Perturbation Theories

    3.1               The Problem of Delaunay                                                                    61

    3.2               The Poincaré Theory                                                                            63

    3.2.1           Expansion of H 0                                                                                   65

    3.2.2           Expansion of H k                                                                                   66

    3.2.3           Perturbation Equations                                                                         67

    3.3               Averaging Rule                                                                                     68

    3.3.1           Small Divisors. Non-Resonance Condition                                        69

    3.4               Degenerate Systems. The von Zeipel--Brouwer Theory                  70

    3.4.1           Expansion of H *                                                                                    72

    3.4.2           von Zeipel--Brouwer Perturbation Equations                                     72

    3.4.3           The von Zeipel Averaging Rule                                                            73

    3.5               Small Divisors and Resonance                                                          74

    3.5.1           Elimination of the Non-Critical Short-Period Angles                         74

    3.6               An Example -- Part I                                                                             77

    3.7               Linear Secular Theory                                                                          81

    3.8               An Example -- Part II                                                                            83

    3.9               Iterative Use of von Zeipel--Brouwer Operations                              86

    3.10            Divergence of the Series. Poincaré's Theorem                                88

    3.11            Kolmogorov's Theorem                                                                        88

    3.11.1         Frequency Relocation                                                                          89

    3.11.2         Convergence                                                                                         91

    3.11.3         Degenerate Systems                                                                           93

    3.11.4         Degeneracy in the Extended Phase Space                                      94

    3.12            Inversion of a Jacobian Transformation                                              94

    3.12.1         Lagrange Implicit Function Theorem                                                  96

    3.12.2         Practical Considerations                                                                     96

    3.13            Lindstedt's Direct Calculation of the Series                                       97

 

   Chapter 4  Resonance

    4.1               The Method of Delaunay's Lunar Theory                                           99

    4.2               Introduction of the Square Root of the Small Parameter               101

    4.2.1           Garfinkel's Abnormal Resonance                                                     103

    4.3               Delaunay Theory According to Poincaré                                         103

    4.3.1           First-Approximation Solution                                                             106

    4.4               Garfinkel's Ideal Resonance Problem                                             107

    4.4.1           Garfinkel-Jupp-Williams Integrals                                                     109

    4.4.2           Circulation (En*11 > A*n*11 > 0)                                                         110

    4.4.3           Libration (|E|<|A*|)                                                                               112

    4.4.4           Asymptotic Motions (E=A*)                                                               114

    4.5               Angle--Action Variables of the Ideal Resonance Problem            115

    4.5.1           Circulation                                                                                            115

    4.5.2           Libration                                                                                               116

    4.5.3           Small-Amplitude Librations                                                               117

    4.6               Morbidelli's Successive Elimination of Harmonics                        118

    4.6.1           An Example                                                                                         120

 

   Chapter 5  Lie Mappings

    5.1               Lie Transformations                                                                           127

    5.1.1           Infinitesimal Canonical Transformations                                          127

    5.2               Lie Derivatives                                                                                   130

    5.3               Lie Series                                                                                           131

    5.4               Inversion of a Lie Mapping                                                                134

    5.5               Lie Series Expansions                                                                      135

    5.5.1           Lie Series Expansion of f                                                                   136

    5.5.2           Deprit's Recursion Formula                                                               137

 

   Chapter 6  Lie Series Perturbation Theory

    6.1               Introduction                                                                                          139

    6.2               Lie Series Theory with Angle-Action Variables                              140

    6.2.1           Averaging                                                                                            142

    6.2.2           High-Order Theories                                                                           143

    6.3               Comparison to Poincaré Theory. Example I                                   144

    6.4               Comparison to Poincaré Theory. Example II                                  147

    6.5               Hori's General Theory. Hori Kernel and Averaging                        151

    6.5.1           Cauchy--Darboux Theory of Characteristics                                    154

    6.6               Topology and Small Divisors                                                            155

    6.6.1           Topological Constraint. The Rise of Small Divisors                       156

    6.7               Hori's Formal First Integral                                                                157

    6.8               “Average” Hamiltonians                                                                     158

    6.8.1           On Secular Theories and Proper Elements                                     159

 

   Chapter 7  Non-Singular Canonical Variables

    7.1               Singularities of the Actions                                                               161

    7.2               Poincaré Non-Singular Variables                                                    162

    7.3               The d'Alembert Property                                                                   164

    7.4               Regular Integrable Hamiltonians                                                      165

    7.5               Lie Series Expansions about the Origin                                          167

    7.6               Lie Series Perturbation Theory in Non-Singular Variables           169

    7.6.1           Solutions Close to the Origin (Case J1<0)                                       172

    7.6.2           Angle-Action Variables of H *2 (Case J1<0)                                    173

    7.7               The Non-Resonance Condition                                                        173

    7.8               Example                                                                                              175

 

   Chapter 8  Lie Series Theory for Resonant Systems       

    8.1               Bohlin's Problem (The Single-Resonance Problem)                     181

    8.2               Outline of the Solution                                                                        182

    8.3               Functions Expansions                                                                       185

    8.4               Perturbation Equations                                                                      188

    8.5               Averaging                                                                                            190

    8.6               An Example                                                                                        190

   8.7               Example with a Separated Hori Kernel                                            198

    8.8               One Degree of Freedom                                                                   204

    8.8.1           Garfinkel's Ideal Resonance Problem                                              204

 

   Chapter 9  Single Resonance near a Singularity    

    9.1               Resonances near the Origin: Real and Virtual                                209

    9.2               One Degree of Freedom                                                                   210

    9.3               Many Degrees of Freedom. One Single Resonance                     213

    9.4               A First-Order Resonance Case Study                                             216

    9.4.1           The Hori Kernel                                                                                   218

    9.4.2           First Perturbation Equation                                                                219

    9.4.3           Averaging                                                                                            220

    9.4.4           The Post-Harmonic Solution                                                              221

    9.4.5           Secular Resonance                                                                            223

    9.4.6           Secondary Resonances                                                                     224

    9.4.7           Initial Conditions Diagram                                                                 225

    9.5               Sessin Transformation and Integral                                                 227

    9.5.1           The Restricted (Asteroidal) Case                                                     229

 

  Chapter 10 Nonlinear Oscillators      

   10.1             Quasiharmonic Hamiltonian Systems                                              231

   10.2             Formal Solutions. General Case                                                      232

   10.3             Exact Commensurability of Frequencies (Resonance)                  234

   10.4             Birkhoff Normalization                                                                        236

   10.4.1          A Formal Extension Including One Single Resonance                   240

   10.4.2          The Comensurabilities of Lower Order                                            242

   10.5             The Restricted Three-Body Problem                                                242

   10.5.1          Equations of the Motion around the Lagrangian Point L 4             244

   10.5.2          Internal 2:1 Resonance                                                                      246

   10.5.3          Internal 3:1 Resonance                                                                      247

   10.5.4          Other Internal Resonances                                                                249

   10.6             The Hénon--Heiles Hamiltonian                                                        250

   10.6.1          The Toda Lattice Hamiltonian                                                           252

   10.7             Systems with Multiple Commensurabilities                                      53

   10.7.1          The Ford--Lunsford Hamiltonian. 1:2:3 Resonance                        255

   10.8             Parametrically Excited Systems                                                       255

   10.8.1          A Nonlinear Extension                                                                        260

 

   App. A      Bohlin Theory                      

    A.1              Bohlin's Resonance Problem                                                            263

    A.2              Bohlin's Perturbation Equations                                                        265

    A.3              Poincaré Singularity                                                                           268

    A.4              An Extension of Delaunay Theory                                                     269

 

   App. B      The Simple Pendulum

    B.1              Equations of Motion                                                                           271

    B.1.1           Circulation                                                                                           273

    B.1.2           Libration                                                                                              274

    B.1.3           The Separatrix                                                                                    276

    B.2              Angle-Action Variables of the Pendulum                                         277

    B.2.1           Circulation                                                                                           277

    B.2.2           Libration                                                                                              278

    B.3              Small Oscillations of the Pendulum                                                  279

    B.3.1           Angle--Action Variables                                                                    280

    B.4              Direct Construction of Angle--Action Variables                              281

    B.5              The Neighborhood of the Pendulum Separatrix                              283

    B.5.1           Motion near the Separatrix                                                                285

    B.6              The Separatrix or Whisker Map                                                        286

    B.7              The Standard Map                                                                              288

 

   App. C      Andoyer Hamiltonian with k=1

    C.1              Andoyer Hamiltonians                                                                        289

    C.2              Centers and Saddle Points                                                               290

    C.2.1           The Case k=1                                                                                     292

    C.3              Morphogenesis                                                                                   293

    C.4              Width of the Libration Zone                                                               296

    C.5              Integration                                                                                            298

    C.5.1           The Case D>0                                                                                    301

    C.5.2           The Case D<0                                                                                    302

    C.5.3           The Separatrices                                                                               303

    C.5.4           The Angle s                                                                                         304

    C.6              Equilibrium Points                                                                              305

    C.6.1           The Inner Circulations Center                                                           306

    C.6.2           The Libration Center                                                                          306

    C.7              Proper Periods                                                                                   306

    C.7.1           Inner Circulations                                                                                307

    C.7.2           Librations                                                                                            307

    C.8              The Angle Variable w                                                                         308

    C.9              Small-Amplitude Librations                                                               308

    C.9.1           The Action L                                                                                        312

    C.9.2           The New Hamiltonian                                                                         312

 

   App. D      Andoyer Hamiltonians with k2                                      

    D.1              Introduction                                                                                          315

    D.2              The Case k=2                                                                                     315

    D.2.1           Morphogenesis                                                                                  316

    D.2.2           Width of the Libration Zone                                                               318

    D.3              The Case k=3                                                                                     320

    D.3.1           Morphogenesis                                                                                  321

    D.3.2           Width of the Libration Zone                                                               323

    D.4              The Case k=4                                                                                     325

    D.4.1           Morphogenesis                                                                                  327

    D.4.2           Width of the Libration Zone                                                               327

    D.5              Comparative Analysis                                                                        328

    D.5.1           Virtual Resonances                                                                            329

 

                        References                                                                                          331

                        Index                                                                                                     337