EntityQ1548483· pop 9· linked from 59 articlesKummer theorySign in to savemathematical theory describing field extensions involving the adjunction of nth rootsConnectionsfield extensionEntitycharacteristicEntityprofinite groupEntitynatural numberEntitycomplex numberEntityintegerEntitynumber theoryEntityrational numberEntityquadratic equationEntityabstract algebraEntityFermat's Last TheoremEntityfieldEntityabelian groupEntitymodular arithmeticEntityErnst KummerEntityelliptic curveEntityroot of unityEntitycyclic groupEntityGalois groupEntityclass field theoryEntityCategoriesAlgebraic number theoryField theory