Adaptive Meshing
•R. Braun, B. Murray, & J. Soto (1997)
º     VLUGR2, vectorized, adaptive finite difference solver
•R. Almgren & A. Almgren (1996)
º      2-D, second-order accurate, semi-implicit
•N. Provatis, N. Goldenfeld, & J. Dantzig (1999)
º     2D, Galerkin FE, dynamically adaptive, quadtree
•M. Plapp & A. Karma (2000)
º    Hybrid FD Mesh/diffusion Monte Carlo method