The Flexible, Extensible and Efficient Toolbox of Level Set Methods
Journal of Scientific Computing
Fast finite difference solvers for singular solutions of the elliptic Monge-Ampère equation
Journal of Computational Physics
SIAM Journal on Numerical Analysis
Optimal Trajectories of Curvature Constrained Motion in the Hamilton---Jacobi Formulation
Journal of Scientific Computing
Applied Numerical Mathematics
A semi-Lagrangian scheme for the game p-Laplacian via p-averaging
Applied Numerical Mathematics
Numerical solution of the Optimal Transportation problem using the Monge-Ampère equation
Journal of Computational Physics
Journal of Computational and Applied Mathematics
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Convergent numerical schemes for degenerate elliptic partial differential equations are constructed and implemented. Simple conditions are identified which ensure that nonlinear finite difference schemes are monotone and nonexpansive in the maximum norm. Explicit schemes endowed with an explicit CFL condition are built for time-dependent equations and are used to solve stationary equations iteratively. Explicit and implicit formulations of monotonicity for first- and second-order equations are unified. Bounds on orders of accuracy are established. An example of a scheme which is stable, but nonmonotone and nonconvergent, is presented. Schemes for Hamilton--Jacobi equations, obstacle problems, one-phase free boundary problems, and stochastic games are built and computational results are presented.