Sevryuk M.B.
Invariant tori of intermediate dimensions in Hamiltonian systems:
A brief survey
(42K, LaTeX 2.09)

ABSTRACT.  In the present paper, we survey recent results on the existence and the
structure of Cantor families of invariant tori of dimensions $p>n$
in a neighborhood of families of invariant $n$-tori in Hamiltonian systems
with $d\geq p$ degrees of freedom.