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Summary: Contents
1 Introduction. 7
11 Lagrangian Dynamics. . . . . . . . . . . . . . . . . . . . . 7
12 The EulerLagrange equation. . . . . . . . . . . . . . . . . 9
13 The Energy function. . . . . . . . . . . . . . . . . . . . . . 12
14 Hamiltonian Systems. . . . . . . . . . . . . . . . . . . . . 14
15 Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2 Ma~n'e's critical value. 21
21 The action potential and the critical value. . . . . . . . . 21
22 Continuity of the critical value. . . . . . . . . . . . . . . . 25
23 Holonomic measures. . . . . . . . . . . . . . . . . . . . . . 26
24 Ergodic characterization of the critical value. . . . . . . . 41
25 The AubryMather Theory. . . . . . . . . . . . . . . . . . 44
25.a Homology of measures. . . . . . . . . . . . . . . . . 44
25.b The asymptotic cycle. . . . . . . . . . . . . . . . . 44
25.c The alpha and beta functions. . . . . . . . . . . . 47
26 Coverings. . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
3 Globally minimizing orbits. 51
31 Tonelli's theorem. . . . . . . . . . . . . . . . . . . . . . . . 51
32 A priori compactness. . . . . . . . . . . . . . . . . . . . . 58
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