Algebra

Kernel

quotient map

Covariant functor

Functoriality

Primary component

Saturation

Primary decomposition

Endomorphism ring

Annihilator

Regular element

Zero divisor

Modular inverse

Residue class

Irreducible polynomial

Polynomial quotient

Quotient coordinates

Quotient vector space

Biorthogonal system

Resolution of the identity

Bi-orthogonality

Schur complement

Surjective morphism

Exact sequence

Enough projectives

Projective object

Abelian category

Endofunctor

Tor

Connecting morphism

Triangulated category

Split distinguished triangle

Chain homotopy

Standard graded polynomial ring

Strongly graded ring

Graded ring

Proj

Irrelevant ideal

Castelnuovo–Mumford regularity

Horseshoe construction

Free resolution

Tor functor

Finitely presented module

Quotient module

Finitely generated module

Similarity of operators

Canonical decomposition

Similarity transformation

Symmetric tensor

Cholesky decomposition

Ideal quotient