Fast Sweeping Algorithms for a Class of Hamilton-Jacobi Equations
Abstract
We derive a Godunov-type numerical flux for the class of strictly convex, homogeneous Hamiltonians that includes H(p, q) = square root of ap(expn 2) + bq(expn 2) - 2cpq, c(expn 2) < ab. We combine our Godunov numerical fluxes with simple Gauss-Seidel-type iterations for solving the corresponding Hamilton Jacobi (HJ) equations. The resulting algorithm is fast since it does not require a sorting strategy as found, e.g., in the fast marching method. In addition, it provides a way to compute solutions to a class of HJ equations for which the conventional fast marching method is not applicable. Our experiments indicate convergence after a few iterations, even in rather difficult cases.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 06, 2003
- Accession Number
- ADA636928
Entities
People
- Hong-kai Zhao
- Li-tien Cheng
- Stanley Osher
- Yen-hsi R. Tsai
Organizations
- Princeton University