Mathematical Methods of Classical Mechanics

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This book constructs the mathematical apparatus of classical mechanics from the beginning, examining basic problems in dynamics like the theory of oscillations and the Hamiltonian formalism. The author emphasizes geometrical considerations and includes phase spaces and flows, vector fields, and Lie groups. Discussion includes qualitative methods of the theory of dynamical systems and of asymptotic methods like averaging and adiabatic invariance.

Author(s): V.I. Arnold
Series: Graduate Texts in Mathematics
Edition: 2
Publisher: Springer
Year: 2010

Language: English
Pages: 530

Cover
Preface
Preface to the second edition
Translator's preface to the second edition
Contents
PART I NEWTONIAN MECHANICS
1 Experimental facts
1 The principles of relativity and determinacy
A Space and time
B Galileo's principle of relativity
C Newton's principle of determinacy
2 The galilean group and Newton's equations
A Notation
B Galilean structure
C Motion, velocity, acceleration
D Newton's equations
E Constraints imposed by the principle of relativity
3 Examples of mechanical systems
A Example 1: A stone falling to the earth
B Example 2: Falling from great height
C Example 3: Motion of a weight along a line under the action of a spring
D Example 4: Conservative systems
2 Investigation of the equations of motion
4 Systems with one degree of freedom
A Definitions
B Phase flow
C Examples
D Phaseflow
5 Systems with two degrees of freedom
A Definitions
B The law of conservation of energy
C Phase space
6 Conservative force fields
A Work of a force field along a path
B Conditions for a field to be conservative
C Central fields
7 Angular momentum
A The law of conservation of angular momentum
B Kepler's law
8 Investigation of motion in a central field
A Reduction to a one-dimensional problem
B Integration of the equation of motion
C Investigation of the orbit
D Central fields in which all bounded orbits are closed
E Kepler's problem
9 The motion of a point in three-space
A Conservative fields
B Central fields
C Axially symmetric fields
10 Motions of a system of n points
A Internal and external forces
B The law of conservation of momentum
C The law of conservation of angular momentum
D The law of conservation of energy
E Example: The two-body problem
11 The method of similarity
A Example
B A problem
PART II LAGRANGIAN MECHANICS
3 Variational principles
12 Calculus of variations
A Variations
B Extremals
C The Euler-Lagrange equation
D An important remark
13 Lagrange's equations
A Hamilton's principle of least action
B The simplest examples
14 Legendre transformations
A Definition
B Examples
C Involutivity
D Young's inequality
E The case of many variables
15 Hamilton's equations
A Equivalence of Lagrange's and Hamilton's equations
B Hamilton'sfunction and energy
C Cyclic coordinates
16 Liouville's theorem
A The phase flow
B Liouville's theorem
C Proof
D Poincare's recurrence theorem
E Applications of Poincare's theorem
4 Lagrangian mechanics on manifolds
17 Holonomic constraints
A Example
B Definition of a system with constraints
18 Differentiable manifolds
A Definition of a differentiable manifold
B Examples
C Tangent space
D The tangent bundle
E Riemannian manifolds
F The derivative map
19 Lagrangian dynamical systems
A Definition of a lagrangian system
B Natural systems
C Systems with holonomic constraints
D Procedure for solving problems with constraints
E Non-autonomous systems
20 E. Noether's theorem
A Formulation of the theorem
B Proof
C Examples
21 D'Alembert's principle
A Example
B Formulation of the D'Alembert-Lagrange principle
C The equivalence of the D' Alembert-Lagrange principle and the variational principle
D Remarks
5 Oscillations
22 Linearization
A Equilibrium positions
B Stability of equilibrium positions
C Linearization of a differential equation
D Linearization of a lagrangian system
E Small oscillations
23 Small oscillations
A A problem about pairs of forms
B Characteristic oscillations
C Decomposition into characteristic oscillations
D Examples
24 Behavior of characteristic frequencies
A Behavior of characteristic frequencies under a change in rigidity
B Behavior of characteristic frequencies under the imposition of a constraint
C Extremal properties of eigenvalues
25 Parametric resonance
A Dynamical systems whose parameters vary periodically with time
B The mapping at a period
C Linear mappings of the plane to itself which preserve area
D Strong stability
E Stability of an inverted pendulum with vertically oscillating point of suspension
6 Rigid bodies
26 Motion in a moving coordinate system
A Moving coordinate systems
B Motions, rotations, and translational motions
C Addition of velocities
D Angular velocity
E Transferred velocity
27 Inertial forces and the Coriolis force
A Coordinate systems moving by translation
B Rotating coordinate systems
28 Rigid bodies
A The configuration manifold of a rigid body
B Conservation laws
C The inertia operator
D Principal axes
29 Euler's equations. Poinsot's description of the motion
A Euler's equations
B Solutions of the Euler equations
C Poinsot's description of the motion
30 Lagrange's top
A Euler angles
B Calculation of the lagrangian function
C Investigation of the motion
31 Sleeping tops and fast tops
A Sleeping tops
B Fast tops
C A top in a weak field
D A rapidly thrown top
PART III HAMILTONIAN MECHANICS
7 Differential forms
32 Exterior forms
A 1-forms
B 2-forms
C k-forms
D The exterior product of two 1-forms
E Exterior monomials
33 Exterior multiplication
A Definition of exterior multiplication
B Properties of the exterior product
C Behavior under mappings
34 Differential forms
A Differential 1-forms
B The general form of a differential 1-form on R^n
C Differential k-forms
D The general form of a differential k-form on R^n
E Appendix. Differential forms in three-dimensional spaces
35 Integration of differential forms
A The integral of a 1-form along a path
B The integral of a k-form on oriented euclidean space R^k
C The behavior of differential forms under maps
D Integration of a k-form on an n-dimensional manifold
E Chains
F Example: the boundary of a polyhedron
G The integral of a form over a chain
36 Exterior differentiation
A Example: the divergence of a vector field
B Definition of the exterior derivative
C A theorem on exterior derivatives
D Stokes' formula
E Example 2 -- Vector analysis
F Appendix 1: Vector operations in triply orthogonal systems
G Appendix 2: Closed forms and cycles
H Appendix 3: Cohomology and homology
8 Symplectic manifolds
37 Symplectic structures on manifolds
A Definition
B The cotangent bundle and its symplectic structure
C Hamiltonian vector fields
38 Hamiltonian phase flows and their integral invariants
A Hamiltonian phase flows preserve the symplectic structure
B Integral invariants
C The law of conservation of energy
39 The Lie algebra of vector fields
A Lie algebras
B Vector fields and differential operators
C The Poisson bracket of vector fields
D The Jacobi identity
E A condition for the commutativity of flows
F Appendix: Lie algebras and Lie groups
40 The Lie algebra of hamiltonian functions
A The Poisson bracket of two functions
B The Jacobi identity
C The Lie algebras oj hamiltonian fields, hamiltonian junctions, and first integrals
D Locally hamiltonian vector fields
41 Symplectic geometry
A Symplectic vector spaces
B The symplectic basis
C The symplectic group
D Planes in symplectic space
E Symplectic structure and complex structure
42 Parametric resonance in systems with many degrees of freedom
A Symplectic matrices
B Symmetry of the spectrum of a symplectic transformation
C Stability
43 A symplectic atlas
A Symplectic coordinates
B Darboux's theorem
C Construction of the coordinates p1 and q1
D Construction of symplectic coordinates by induction on n
E Proof that the coordinates constructed are symplectic
9 Canonical formalism
44 The integral invariant of Poincare-Cartan
A A hydrodynamical lemma
B The multi-dimensional Stokes' lemma
C Hamilton's equations
D A theorem on the integral invariant of Poincare-Cartan
E Canonical transformations
45 Applications of the integral invariant of Poincare-Cartan
A Changes of variables in the canonical equations
B Reduction of order using the energy integral
C The principle of least action in phase space
D The principle of least action in the Maupertuis-Euler-Lagrange-Jacobi form
46 Huygens' principle
A Wave fronts
B The optical-mechanical analogy
C Action as a function of coordinates and time
D The Hamilton-Jacobi equation
47 The Hamilton-Jacobi method for integrating Hamilton's canonical equations
A Generating functions
B The Hamilton-Jacobi equation for generating functions
C Examples
48 Generating functions
A The generating function S_2(P, q)
B 2^n generating functions
C Infinitesimal canonical transformations
10 Introduction to perturbation theory
49 Integrable systems
A Liouville's theorem on integrable systems
B Beginning of the proof of Liouville's theorem
C Manifolds on which the action of the group R^n is transitive
D Discrete subgroups in R^n
50 Action-angle variables
A Description of action-angle variables
B Construction of action-angle variables in the case of one degree of freedom
C Construction of action-angle variables in R^2n
51 Averaging
A Conditionally periodic motion
B Space average and time average
C Proof of the theorem on averages
D Degeneracies
52 Averaging of perturbations
A Systems close to integrable ones
B The averaging principle
C Averaging in a single-frequency system
D Proof of the theorem on averaging
E Adiabatic invariants
F Proof of the adiabatic invariance of action
Appendix 1: Riemannian curvature
A Parallel translation on surfaces
B The curvature form
C The riemannian curvature of a surface
D Higher-dimensional parallel translation
E The curvature tensor
F Curvature in a two-dimensional direction
G Covariant differentiation
H The Jacobi equation
I Investigation of the Jacobi equation
J Geodesic flows on compact manifolds of negative curvature
K Other applications of exponential instability
Appendix 2: Geodesics of left-invariant metrics on Lie groups and the hydrodynamics of ideal fluids
A Notation: The adjoint and co-adjoint representations
B Left-invariant metrics
C Example
D Euler's equation
E Stationary rotations and their stability
F Riemannian curvature of a group with left-invariant metric
G Application to groups of diffeomorphisms
I Isovorticial fields
J Stability of planar stationary flows
K Riemannian curvature of a group of diffeomorphisms
L Discussion
Appendix 3: Symplectic structures on algebraic manifolds
A The hermitian structure of complex projective space
B The symplectic structure of complex projective space
C Symplectic structure on algebraic manifolds
Appendix 4: Contact structures
A Definition of contact structure
B Frobenius' integrability condition
C Nondegenerate fields of hyperplanes
D The manifold of contact elements
E Symplectification of a contact manifold
F Contact diffeomorphisms and vector fields
G Symplectification of contact diffeomorphisms and fields
H Darboux's theorem for contact structures
I Contact hamiltonians
J Computational formulas
K Legendre manifolds
L Contactification
M Integration of first-order partial differential equations
Appendix 5: Dynamical systems with symmetries
A Poisson action of Lie groups
B The reduced phase space
C Applications to the study of stationary rotations and bifurcations of invariant manifolds
Appendix 6: Normal forms of quadratic hamiltonians
A Notation
B Hamiltonians
C Nonremovable Jordan blocks
Appendix 7: Normal forms of hamiltonian systems near stationary points and closed trajectories
A Normalform of a conservative system near an equilibrium position
B Normal form of a canonical transformation near a stationary point
C Normal form of an equation with periodic coefficients near an equilibrium position
D Example: Resonance of order 3
E Splitting of separatrices
F Resonances of higher order
Appendix 8: Theory of perturbations of conditionally periodic motion, and Kolmogorov's theorem
A Unperturbed motion
B Invariant tori in a perturbed system
C Zones of instability
D Variants of the theorem on invariant tori
E Applications of the theorem on invariant tori and its generalizations
Appendix 9: Poincare's geometric theorem, its generalizations and applications
A Fixed points of mappings of the annulus to itself
B The connection betweenjixed points of a mapping and critical points of the generating function
C Symplectic diffeomorphisms of the torus
D Intersections of lagrangian manifolds
E Applications to determining fixed points and periodic solutions
F Invariance of generating functions
Appendix 10: Multiplicities of characteristic frequencies, and ellipsoids depending on parameters
A The manifold of ellipsoids of revolution
B Application to the study of oscillations of continuous media
C The effect of symmetries on the multiplicity of the spectrum
D The behavior of frequencies of a symmetric system under a variation of parameters preserving the symmetry
E Discussion
Appendix 11: Short wave asymptotics
A Quasi-classical approximation for solutions of Schrodinger's equation
B The Morse and Maslov indices
C Indices of closed curves
Appendix 12: Lagrangian singularities
A Singularities of smooth mappings of a surface onto a plane
B Singularities of projection of lagrangian manifolds
C Tables of normal forms of typical singularities of projections of lagrangian manifolds of dimension n <= 5
D Discussion of the normal forms
E Lagrangian equivalence
Appendix 13: The Korteweg-de Vries equation
Appendix 14: Poisson structures
A Poisson manifolds
B Poisson mappings
C Poisson structures in the plane
D Powers of volume forms
E The quasi-homogeneous case
F Varchenko's theorem
G Poisson structures and period mappings
Appendix 15: On elliptic coordinates
A Elliptic coordinates and confocal quadrics
B Magnetic analogues of the theorems of Newton and Ivory
Appendix 16: Singularities ofray systems
A Symplectic manifolds and ray systems
B Submanifolds of symplectic manifolds
C Lagrangian submanifolds in the theory of ray systems
D Contact geometry and systems of rays and wave fronts
E Applications of contact geometry to symplectic geometry
F Tangential singularities
G The obstacle problem
Bibliography of Symplectic Topology
Index