TY - JOUR AU - Elman, Howard C. AU - Tuminaro, Ray S. TI - Boundary conditions in approximate commutator preconditioners for the Navier-Stokes equations JO - Electronic transactions on numerical analysis PY - 2009 SP - 257 EP - 280 VL - 35 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ETNA_2009__35__a0/ LA - en ID - ETNA_2009__35__a0 ER -