Hilbert’s syzygy theorem
E43323
Hilbert’s syzygy theorem is a fundamental result in commutative algebra that describes the finite length and structure of free resolutions of modules over polynomial rings.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Hilbert’s theorem on projective dimension | 1 |
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
mathematical theorem
ⓘ
theorem in commutative algebra ⓘ |
| appliesTo |
finitely generated modules over polynomial rings
ⓘ
polynomial rings over a field ⓘ standard graded polynomial rings ⓘ |
| assumes |
finitely generated module
ⓘ
polynomial ring in finitely many variables ⓘ |
| characterizes | global dimension of polynomial rings ⓘ |
| concerns |
homological dimension
ⓘ
minimal free resolutions ⓘ projective dimension of modules ⓘ syzygies of modules ⓘ |
| describes |
finite length of minimal free resolutions over polynomial rings
ⓘ
structure of free resolutions of modules over polynomial rings ⓘ |
| field |
algebraic geometry
ⓘ
commutative algebra ⓘ homological algebra ⓘ |
| formalizes | finite generation of higher syzygies over polynomial rings ⓘ |
| hasConsequence |
bounds length of minimal free resolutions by number of variables
ⓘ
controls number of steps needed to resolve a module by free modules ⓘ gives homological characterization of polynomial rings ⓘ |
| historicalPeriod | late 19th century mathematics ⓘ |
| holdsFor |
finitely generated graded modules over a standard graded polynomial ring
ⓘ
polynomial rings in finitely many variables over a field ⓘ |
| implies |
global dimension of a polynomial ring in n variables over a field is n
ⓘ
polynomial rings over a field are regular rings ⓘ polynomial rings over a field have finite global dimension ⓘ |
| influenced |
development of homological algebra
ⓘ
modern commutative algebra ⓘ |
| isPartOf | Hilbert’s work on invariant theory ⓘ |
| namedAfter | David Hilbert ⓘ |
| relatedTo |
Auslander–Buchsbaum formula
ⓘ
Betti numbers of graded modules ⓘ Castelnuovo–Mumford regularity ⓘ Hilbert basis theorem ⓘ
surface form:
Hilbert’s basis theorem
Hilbert’s syzygy theorem self-linksurface differs ⓘ
surface form:
Hilbert’s theorem on projective dimension
minimal graded free resolution ⓘ |
| statesThat |
every finitely generated module over a polynomial ring in n variables over a field has a free resolution of length at most n
ⓘ
projective dimension of a finitely generated module over a polynomial ring in n variables over a field is at most n ⓘ |
| usedIn |
algebraic geometry via coordinate rings of varieties
ⓘ
computational commutative algebra ⓘ homological characterization of regular local rings ⓘ study of graded modules over polynomial rings ⓘ theory of minimal free resolutions of ideals ⓘ |
| usesConcept |
Noetherian ring
ⓘ
free resolution ⓘ graded module ⓘ polynomial ring ⓘ syzygy ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hilbert’s theorem on projective dimension