Category
page 1Module theory
module
generalization of vector space, with scalars in a ring instead of a field
free module
in algebra, a module that has a basis
simple module
module over a ring with no nontrivial submodules
direct sum of modules
operation in abstract algebra
semisimple module
direct sum of irreducible modules
composition series
decomposition of an algebraic structure
flat module
module such that taking the tensor product with it induces an exact functor
projective module
in algebra, a module that is the direct summand of a free module
torsion
elements of a module space sent to 0 by regular elements of a ring
localization of a ring
construction of a ring of fractions, in commutative algebra

quotient module
algebraic construction
injective module
module that makes certain exact sequences split
length
integer invariant of a module in linear algebra
Artinian module
module which satisfies the descending chain condition on submodules
depth
invariant of rings and modules in algebra
endomorphism ring
endomorphism algebra of an abelian group
bimodule
In abstract algebra, a bimodule is an abelian group that is both a left and a right module, such that the left and right multiplications are compatible. Besides appearing naturally in many parts of mathematics, bimodules play a clarifying role, in the sense that many of the relationships between left and right modules become simpler when they are expressed in terms of bimodules.
finitely generated module
In algebra, a module that has a finite generating set
resolution
in algebra, an exact sequence which is used to describe the structure of an object

Artin–Rees lemma
lemma stating that, given an ideal I in a Noetherian commutative ring R and a submodule N of a a finitely generated R-module M, there exists a positive integer k such that, for every n≥k, IⁿM ∩ N = Iⁿ⁻ᵏ(IᵏM ∩ N)

structure theorem for finitely generated modules over a principal ideal domain
result in abstract algebra
annihilator
concept in module theory
Morita equivalence
equivalence relation on rings
Noetherian module
module without any strictly ascending sequence of submodules
Frobenius algebra
finite-dimensional unital associative algebra with a compatible bilinear form
associated prime
Prime ideal involved in a primary decomposition
socle
concept in module theory
global dimension
homological property of mathematical rings
indecomposable module
essential extension
concept in mathematics

tensor product of modules
operation that pairs a left and a right 𝑅‐module into an abelian group
algebra representation
linear representation of an associative algebra
primitive ideal
annihilator of a simple module
dual module
cyclic module
module generated by one element
Krull–Schmidt theorem
mathematical theorem
support of a module
Jacobson density theorem
mathematical theorem