EntityQ716171· pop 6· linked from 15 articleszero-sum problemSign in to savemathematical problemConnectionscombinatoricsEntityInternational Standard Book NumberEntityintegerEntitynumber theoryEntitydigital object identifierEntityPaul ErdősEntityQ118398Entityabelian groupEntitymodular arithmeticEntityidentity elementEntityQ22908627EntitySpringer Science+Business MediaEntitymultisetEntityEncyclopedia of MathematicsEntityzbMATH OpenEntityEuropean Mathematical SocietyEntitysubset sum problemEntityGraduate Texts in MathematicsEntitySun ZhiweiEntityJózsef SolymosiEntityCategoriesCombinatoricsMathematical problemsPaul ErdősRamsey theory