EntityQ1625040· pop 9· linked from 38 articlesinjective objectSign in to saveobject 𝑋 in an abelian category such that hom(–,𝑋) is an exact functor to the opposite category of the category of abelian groupsConnectionscategoryEntitymathematicsEntitygroup theoryEntitycontinuous functionEntityalgebraic geometryEntityabelian groupEntitysurjective functionEntityalgebraic topologyEntitycategory theoryEntityif and only ifEntitymonotonic functionEntitymoduleEntitygroup homomorphismEntityclassEntitypartially ordered setEntitymorphismEntityexact sequenceEntitymonomorphismEntitylocally compact spaceEntityabelian categoryEntityCategoriesCategory theory