摘要

For a positive definite Hamiltonian system H = h(p)+ is an element of P (p, q) with (p, q) is an element of R-3 x T-3, large normally hyperbolic invariant cylinders exist along the whole resonant path, except for the is an element of(1/2+d)-neighborhood of finitely many double resonant points. It allows one to construct diffusion orbits to cross double resonance.