Periodic motion of a charge on a manifold in the magnetic fields
Abstract
Description
In this paper we prove the existence of a periodic motion of a charge on a large class of manifolds under the action of the magnetic fields. Our methods also give a class of closed manifolds whose cotangent bundle contain no the closed exact Lagrangian submanifolds.
23 pages, LaTeX, a serious error is corrected and some new results are added
23 pages, LaTeX, a serious error is corrected and some new results are added