TY - JOUR AU - Gabriel Wittum TI - On the Convergence of Multi-Grid Methods with Transforming Smoothers. Theory with Applications to the Navier-Stokes Equations. JO - Numerische Mathematik PY - 1990 SP - 15 EP - 38 VL - 57 IS - 6-7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1990__57_6-7_133432/ ID - NUMA_1990__57_6-7_133432 ER -