Below is the ascii version of the abstract for 07-147.
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Dynamics of Hamiltonian Systems
ABSTRACT. Hamiltonian systems are a class of dynamical
systems which can be characterised by preservation of a
symplectic form. This allows to write down the equations
of motion in terms of a single function, the Hamiltonian
function. They were conceived in the $19$th century to
study physical systems varying from optics to frictionless
mechanics in a unified way. This description turned out
to be particularly efficient for symmetry reduction and