SGA
E254121
SGA is a monumental multi-volume seminar series on algebraic geometry, led by Alexander Grothendieck, that profoundly reshaped the foundations and methods of the field.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T2290627 — 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.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SGA Context triple: [Alexander Grothendieck, knownFor, SGA]
-
A.
SG
SG is a postcode area in the United Kingdom covering parts of Hertfordshire and surrounding regions.
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B.
SGN
SGN is the IATA airport code for Tan Son Nhat International Airport, the main international gateway serving Ho Chi Minh City, Vietnam.
-
C.
SARA
SARA is the common short name for the U.S. Superfund Amendments and Reauthorization Act, which expanded and strengthened the federal Superfund program for cleaning up hazardous waste sites.
-
D.
SSA
SSA is a professional scientific organization dedicated to advancing the study and understanding of earthquakes and seismic phenomena.
-
E.
SSA
SSA is the U.S. federal agency responsible for administering Social Security programs, including retirement, disability, and survivors benefits.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SGA Target entity description: SGA is a monumental multi-volume seminar series on algebraic geometry, led by Alexander Grothendieck, that profoundly reshaped the foundations and methods of the field.
-
A.
SG
SG is a postcode area in the United Kingdom covering parts of Hertfordshire and surrounding regions.
-
B.
SGN
SGN is the IATA airport code for Tan Son Nhat International Airport, the main international gateway serving Ho Chi Minh City, Vietnam.
-
C.
SARA
SARA is the common short name for the U.S. Superfund Amendments and Reauthorization Act, which expanded and strengthened the federal Superfund program for cleaning up hazardous waste sites.
-
D.
SSA
SSA is a professional scientific organization dedicated to advancing the study and understanding of earthquakes and seismic phenomena.
-
E.
SSA
SSA is the U.S. federal agency responsible for administering Social Security programs, including retirement, disability, and survivors benefits.
- F. None of above. chosen
Statements (59)
| Predicate | Object |
|---|---|
| instanceOf |
mathematical monograph
ⓘ
mathematical monograph ⓘ mathematical monograph ⓘ mathematical monograph ⓘ mathematical monograph ⓘ mathematical monograph ⓘ mathematical monograph ⓘ mathematical monograph ⓘ mathematical text ⓘ multi-volume work ⓘ seminar series ⓘ |
| abbreviationOf |
Séminaire de Géométrie Algébrique du Bois Marie
ⓘ
surface form:
Séminaire de Géométrie Algébrique
|
| associatedInstitution | Institut des Hautes Études Scientifiques ⓘ |
| countryOfOrigin | France ⓘ |
| editor |
Alexander Grothendieck
ⓘ
Luc Illusie ⓘ Michel Raynaud ⓘ |
| field | algebraic geometry ⓘ |
| fullName |
Séminaire de Géométrie Algébrique du Bois Marie
ⓘ
surface form:
Séminaire de Géométrie Algébrique
|
| hasPart |
SGA 1
ⓘ
SGA 2 ⓘ SGA 3 ⓘ SGA 4 ⓘ SGA 4½ ⓘ SGA 5 ⓘ SGA 6 ⓘ SGA 7 ⓘ |
| impact | reshaped foundations of modern algebraic geometry ⓘ |
| influencedField |
algebraic geometry
ⓘ
arithmetic geometry ⓘ category theory ⓘ homological algebra ⓘ number theory ⓘ |
| introducedConcept |
Grothendieck topologies
ⓘ
topos in algebraic geometry ⓘ étale cohomology ⓘ |
| language | French ⓘ |
| ledBy | Alexander Grothendieck ⓘ |
| mainTopic |
Grothendieck–Riemann–Roch theorem
ⓘ
Lefschetz hyperplane theorem ⓘ
surface form:
Lefschetz theorems
Lefschetz fixed-point theorem ⓘ
surface form:
Lefschetz trace formula
fundamental group ⓘ group schemes ⓘ intersection theory ⓘ local cohomology ⓘ monodromy ⓘ supplements to SGA 4 ⓘ topos theory ⓘ étale cohomology ⓘ étale coverings ⓘ ℓ-adic cohomology ⓘ ℓ-adic cohomology of curves ⓘ |
| publicationType | seminar proceedings ⓘ |
| timePeriod | 1960s ⓘ |
| title |
Séminaire de Géométrie Algébrique du Bois Marie
ⓘ
surface form:
Cohomologie locale des faisceaux cohérents et théorèmes de Lefschetz locaux et globaux
Revêtements étales et groupe fondamental ⓘ Schémas en groupes ⓘ Théorie des intersections et théorème de Riemann–Roch ⓘ Théorie des topos et cohomologie étale des schémas ⓘ |
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.
Instruction
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.
Input
Subject: SGA Description of subject: SGA is a monumental multi-volume seminar series on algebraic geometry, led by Alexander Grothendieck, that profoundly reshaped the foundations and methods of the field.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
SGA 1
this entity surface form:
SGA 2
this entity surface form:
SGA 3
this entity surface form:
SGA 5
this entity surface form:
SGA 6