Tentative Syllabus: The course will focus on
applications of modern symplectic topological techniques to
Hamiltonian dynamics. We will begin with an (ideally,
brief) discussion of basic concepts of symplectic geometry:
symplectic manifolds, Hamiltonian diffeomorphisms and flows,
Lagrangian submanifolds, the least action principle, etc. Here we
will also introduce several classes of dynamical systems of
interest, such as geodesic flows and twisted geodesic (or magnetic)
flows, and formulate the main problems in dynamics (e.g., Arnold's
and Weinstein's conjectures, i.e., the existence of fixed points
and periodic orbits) addressed by symplectic topological
techniques. Then we turn to a detailed discussion of symplectic
topological methods, starting with a review of Morse theory and
including an introduction to Floer homology, action selectors, and
other tools modern approaches to these problems rely on.
It should be said that this is not a comprehensive course in
symplectic geometry and many important concepts (mainly those concerning
symmetries) will be entirely omitted or just briefly
mentioned. However, the course is coordinated with Math 249A,
Mechanics I (Debra Lewis, MW 2:00-3:45pm) and some of these
notions, such as, e.g., symplectic reduction, are covered in Mechanics.