[Paper Review] Split Newton in Two and Free-Surface Becomes Solvable — Casulli–Zanolli (2012)
·5 min read
How wet and dry cells live in one system with monotone convergence.
What Jacobi Cannot Kill in 10,000 Sweeps, a V-Cycle Kills in 10 — The Real Secret of Multigrid
·6 min read
Swap the grid, swap the frequency: how a hierarchy converts stubborn low modes into easy ones