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THIRD DERIVATIVES OF THE INTEGRABLE PART OF AN ASTEROID HAMILTONIAN
Celestial mechanics-Minor planets asteroids
2009/2/16
To apply the theorem of Nekhoroshev (1977) to asteroids, one ¯rst
has to check whether a necessary geometrical condition is ful¯lled: either convexity,
or quasi-convexity, or only a 3-jet ...