Lasker–Noether theorem on primary decomposition

E621103

The Lasker–Noether theorem on primary decomposition is a fundamental result in commutative algebra stating that every ideal in a Noetherian ring can be expressed as a finite intersection of primary ideals, generalizing the factorization of integers into prime powers.

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Statements (42)

Predicate Object
instanceOf mathematical theorem ⓘ
appearsIn Atiyah–Macdonald: Introduction to Commutative Algebra ⓘ
Zariski–Samuel: Commutative Algebra ⓘ
standard textbooks on commutative algebra ⓘ
appliesTo Noetherian ring ⓘ
assumes ring is Noetherian ⓘ
concerns ideal decomposition ⓘ
ideals in commutative rings ⓘ
primary ideals ⓘ
prime ideals ⓘ
domain ring theory ⓘ
feature decomposition is finite ⓘ
primary components correspond to prime ideals ⓘ
primary decomposition is not necessarily unique ⓘ
set of associated primes is uniquely determined ⓘ
field commutative algebra ⓘ
formalizes decomposition of ideals analogous to factorization of numbers ⓘ
generalizedBy Emmy Noether ⓘ
generalizes unique factorization of integers into prime powers ⓘ
historicalContext early 20th century development of commutative algebra ⓘ
implies associated primes of an ideal in a Noetherian ring are finite ⓘ
every ideal in a Noetherian ring has a primary decomposition ⓘ
involves Noetherian modules (in module-theoretic versions) ⓘ
intersection of primary ideals ⓘ
radical of an ideal ⓘ
namedAfter Emanuel Lasker ⓘ
Emmy Noether ⓘ
provedBy Emanuel Lasker ⓘ
relatedTo Krull’s principal ideal theorem ⓘ
Noether normalization lemma ⓘ
relatesConcept Noetherian condition ⓘ
linked to: Noetherian rings

associated prime ideals ⓘ
minimal prime ideals ⓘ
primary decomposition of ideals ⓘ
requires ascending chain condition on ideals ⓘ
statement Every ideal in a Noetherian ring can be expressed as a finite intersection of primary ideals. ⓘ
toolFor analyzing structure of ideals ⓘ
computing associated primes ⓘ
studying local properties of schemes ⓘ
usedIn algebraic geometry ⓘ
decomposition of algebraic sets into irreducible components ⓘ
structure theory of modules over Noetherian rings ⓘ

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Noetherian ring → hasTheorem → Lasker–Noether theorem on primary decomposition ⓘ
subject linked to: Noetherian rings