In mathematics, an abelian category is a category in which morphisms and objects can be added and in which kernels and cokernels exist and have desirable properties.
In homological algebra, a δ-functor between two abelian categories A and B is a collection of functors from A to B together with a collection of morphisms that satisfy properties generalising those of derived functors.
New!!: Effaceable functor and Delta-functor ·
The article "Sur quelques points d'algèbre homologique" by Alexander Grothendieck, now often referred to as the Tôhoku paper, was published in 1957 in the Tôhoku Mathematical Journal.
In the context of abstract algebra or universal algebra, a monomorphism is an injective homomorphism.
New!!: Effaceable functor and Monomorphism ·
In mathematics, specifically in category theory, a preadditive category is a category that is enriched over the monoidal category of abelian groups.