EntityQ1028355· pop 9· linked from 30 articlesgraph operationSign in to saveoperation producing new graphs from old onesConnectionsmathematicsEntityInternational Standard Book NumberEntitydigital object identifierEntitygraph theoryEntityCartesian productEntitybinary operationEntitygraphEntityJSTOREntityunionEntityQ118398Entitymathematical operationEntityunary operationEntityHandle SystemEntityMathematical ReviewsEntitycomplement graphEntityAnnals of MathematicsEntitydual graphEntityline graphEntityFrank HararyEntityminor graphEntityCategoriesGraph operations