Abstract
Abstract We investigate the asymptotic behavior of solutions of Hamilton–Jacobi equations with large Hamiltonian drift terms in an open subset of the two-dimensional Euclidean space. The drift is given by ε - 1 ( H x 2 , - H x 1 ) {{\varepsilon}^{-1}(H_{x_{2}},-H_{x_{1}})} of a Hamiltonian H, with ε > 0 {{\varepsilon}>0} . We establish the convergence, as ε → 0 + {{\varepsilon}\to 0+} , of solutions of the Hamilton–Jacobi equations and identify the limit of the solutions as the solution of systems of ordinary differential equations on a graph. This result generalizes the previous one obtained by the author to the case where the Hamiltonian H admits a degenerate critical point and, as a consequence, the graph may have more than four segments at a node.
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