Homogenization of metric Hamilton–Jacobi equations

AM Oberman, R Takei, A Vladimirsky - Multiscale Modeling & Simulation, 2009 - SIAM
Multiscale Modeling & Simulation, 2009SIAM
In this work we provide a novel approach to homogenization for a class of static Hamilton–
Jacobi (HJ) equations, which we call metric HJ equations. We relate the solutions of the HJ
equations to the distance function in a corresponding Riemannian or Finslerian metric. The
metric approach allows us to conclude that the homogenized equation also induces a
metric. The advantage of the method is that we can solve just one auxiliary equation to
recover the homogenized Hamiltonian ̄H(p). This is a significant improvement over existing …
In this work we provide a novel approach to homogenization for a class of static Hamilton–Jacobi (HJ) equations, which we call metric HJ equations. We relate the solutions of the HJ equations to the distance function in a corresponding Riemannian or Finslerian metric. The metric approach allows us to conclude that the homogenized equation also induces a metric. The advantage of the method is that we can solve just one auxiliary equation to recover the homogenized Hamiltonian . This is a significant improvement over existing methods which require the solution of the cell problem (or a variational problem) for each value of p. Computational results are presented and compared with analytic results when available for piecewise constant periodic and random speed functions.
Society for Industrial and Applied Mathematics
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