TY - JOUR AU - M. Putcha TI - The archimedean graph of a positive function on a semigroup. JO - Semigroup forum PY - 1976 SP - 221 EP - 232 VL - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1976__12_134175/ ID - SF_1976__12_134175 ER -