TY - BOOK AU - AU - Siegred Alan C. Baluyot ED - ED - ED - ED - SN - 2 PY - 2009///46 CY - Quezon City : PB - Office of Research and Publications, Ateneo de Manila University, KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Linear operators KW - Edgesum of a graph KW - sears0 N1 - ABSTRACT : This paper , we characterize all linear operators of B that preserve the edgesum; 5 ER -