EntityQ2103034· pop 13· linked from 66 articlespolynomial-time reductionSign in to savemethod for solving one problem using anotherConnectionsgraph isomorphism problemEntityInternational Standard Book NumberEntityalgorithmEntitydigital object identifierEntitypolynomialEntityOCLC, Inc.EntitygraphEntityformal languageEntitytruth tableEntitysubroutineEntitycomputational complexity theoryEntityStephen CookEntityRichard M. KarpEntityAlfred AhoEntityNPEntityNP-completeEntitydecision problemEntityPEntitycontrapositionEntityNP-hardEntityCategoriesReduction (complexity)