AbstractAuthorsStefan Cobzas Institutul de Matematica Cluj-Napoca, Romania Costica Mustata Institutul de Matematica, Cluj-Napoca, Romania (ICTP) KeywordsPaper coordinatesS. Cobzas, C. Mustata,…
AbstractAggregation-based multigrid with standard piecewise constant like prolongation is investigated. Unknowns are aggregated either by pairs or by quadruplets; in…