Weil group
E244843
The Weil group is an extension of the absolute Galois group introduced by André Weil to refine class field theory and play a central role in the formulation of the local and global Langlands correspondences.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Weil group canonical | 2 |
| Weil group of a global field | 1 |
| Weil group of a local field | 1 |
| absolute Galois group | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2228053 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
Target entity: Weil group Context triple: [André Weil, notableConcept, Weil group]
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A.
Weyl group
A Weyl group is a finite reflection group associated with a root system that encodes the symmetries of Lie algebras and Lie groups in representation theory and geometry.
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B.
Hasse–Weil zeta function
The Hasse–Weil zeta function is an analytic object in number theory that encodes arithmetic information about algebraic varieties over number fields, generalizing the Riemann zeta function and playing a central role in modern arithmetic geometry and conjectures like the Weil conjectures and the Birch–Swinnerton-Dyer conjecture.
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C.
Kronecker–Weber theorem
The Kronecker–Weber theorem is a fundamental result in algebraic number theory stating that every finite abelian extension of the rational numbers is contained in a cyclotomic field generated by roots of unity.
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D.
Levine-Fricke Field
Levine-Fricke Field is the home softball stadium of the University of California, Berkeley Golden Bears, located on the university’s campus in Berkeley, California.
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E.
Hilbert’s twelfth problem
Hilbert’s twelfth problem is one of David Hilbert’s famous list of 23 problems, asking for a general explicit class field theory that would generate all abelian extensions of a given number field using special values of analytic functions.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Weil group Target entity description: The Weil group is an extension of the absolute Galois group introduced by André Weil to refine class field theory and play a central role in the formulation of the local and global Langlands correspondences.
-
A.
Weyl group
A Weyl group is a finite reflection group associated with a root system that encodes the symmetries of Lie algebras and Lie groups in representation theory and geometry.
-
B.
Hasse–Weil zeta function
The Hasse–Weil zeta function is an analytic object in number theory that encodes arithmetic information about algebraic varieties over number fields, generalizing the Riemann zeta function and playing a central role in modern arithmetic geometry and conjectures like the Weil conjectures and the Birch–Swinnerton-Dyer conjecture.
-
C.
Kronecker–Weber theorem
The Kronecker–Weber theorem is a fundamental result in algebraic number theory stating that every finite abelian extension of the rational numbers is contained in a cyclotomic field generated by roots of unity.
-
D.
Levine-Fricke Field
Levine-Fricke Field is the home softball stadium of the University of California, Berkeley Golden Bears, located on the university’s campus in Berkeley, California.
-
E.
Hilbert’s twelfth problem
Hilbert’s twelfth problem is one of David Hilbert’s famous list of 23 problems, asking for a general explicit class field theory that would generate all abelian extensions of a given number field using special values of analytic functions.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
mathematical group
ⓘ
object in arithmetic geometry ⓘ object in number theory ⓘ topological group ⓘ |
| contains | absolute Galois group ⓘ |
| definedFor |
global field
ⓘ
local field ⓘ number field ⓘ |
| extensionOf |
Weil group
self-linksurface differs
ⓘ
surface form:
absolute Galois group
|
| fieldOfStudy |
Langlands program
ⓘ
class field theory ⓘ number theory ⓘ |
| generalizationOf |
Weil group
self-linksurface differs
ⓘ
surface form:
Weil group of a global field
Weil group self-linksurface differs ⓘ
surface form:
Weil group of a local field
|
| hasElementType |
Frobenius element
ⓘ
surface form:
Frobenius elements
|
| hasPurpose |
to formulate Langlands correspondences
ⓘ
to refine class field theory ⓘ |
| hasVariant |
Weil–Deligne group
ⓘ
global Weil group ⓘ local Weil group ⓘ |
| introducedBy | André Weil ⓘ |
| introducedInContextOf | class field theory ⓘ |
| namedAfter | André Weil ⓘ |
| playsRoleIn |
definition of L-functions
ⓘ
parameterization of automorphic representations ⓘ |
| refines | absolute Galois group ⓘ |
| relatedConcept |
Artin reciprocity law
ⓘ
surface form:
Artin reciprocity
Galois representation ⓘ L-parameter ⓘ Weil representation ⓘ |
| relatedTo |
Galois group
ⓘ
Hecke characters ⓘ automorphic forms ⓘ idèle class group ⓘ motivic Galois group ⓘ |
| topology |
locally compact topology
ⓘ
non-Hausdorff topology ⓘ |
| usedBy |
Michael Artin
ⓘ
Pierre Deligne ⓘ Robert Langlands ⓘ |
| usedIn |
global Langlands correspondence
ⓘ
global class field theory ⓘ Langlands program ⓘ
surface form:
local Langlands correspondence
local class field theory ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Subject: Weil group Description of subject: The Weil group is an extension of the absolute Galois group introduced by André Weil to refine class field theory and play a central role in the formulation of the local and global Langlands correspondences.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.