## A Pure Hamiltonian Proof of the Maupertuis Principle

Here is another version of proof of Maupertuis’s principle. This version is pure Hamiltonian and independent on the Lagrangian approach. The proof is based upon the Hamiltonian version of the Vector Field Straightening Theorem. It seems that such a style of exposition simplifies understanding of this non-trivial construction. First recall and briefly discuss the […]