%0 Journal Article %A GALEGO, ELÓI MEDINA %T AN ARITHMETICAL CHARACTERIZATION OF DECOMPOSITION METHODS IN BANACH SPACES VIA SUPPLEMENTED SUBSPACES %J Glasgow mathematical journal %D 2005 %P 489-500 %V 47 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089505002727/ %R 10.1017/S0017089505002727 %F 10_1017_S0017089505002727