Invariance of global solutions of the Hamilton-Jacobi equation

23 Feb 2015  ·  Maderna Ezequiel ·

We show that every global viscosity solution of the Hamilton-Jacobi equation associated with a convex and superlinear Hamiltonian on the cotangent bundle of a closed manifold is necessarily invariant under the identity component of the group of symmetries of the Hamiltonian (We prove that this group is a compact Lie group). In particular, every Lagrangian section invariant under the Hamiltonian flow is also invariant under this group...

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Symplectic Geometry