Charles Ehresmann
E589171
Charles Ehresmann was a French mathematician known for his foundational work in differential topology and category theory, including the development of concepts such as fiber bundles and Lie groupoids.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Charles Ehresmann canonical | 5 |
| Ehresmann | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6282413 — 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: Charles Ehresmann Context triple: [Lie pseudogroup, formalizedBy, Charles Ehresmann]
-
A.
Jean Cartan
Jean Cartan was a French composer of the early 20th century known for his chamber and piano works before his career was cut short by his early death.
-
B.
Henri Cartan
Henri Cartan was a prominent French mathematician known for his foundational contributions to algebraic topology, homological algebra, and the theory of analytic functions.
-
C.
Élie Cartan
Élie Cartan was a pioneering French mathematician renowned for his foundational work in differential geometry, Lie groups, and the theory of symmetric spaces.
-
D.
Emile de Ruelle
Emile de Ruelle was a film editor active during the early 20th century, known for his work on Alfred Hitchcock’s 1929 thriller "Blackmail."
-
E.
Claude Chevalley
Claude Chevalley was a French mathematician renowned for his foundational contributions to algebraic geometry, number theory, and the theory of Lie groups and algebraic groups.
- 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: Charles Ehresmann Target entity description: Charles Ehresmann was a French mathematician known for his foundational work in differential topology and category theory, including the development of concepts such as fiber bundles and Lie groupoids.
-
A.
Jean Cartan
Jean Cartan was a French composer of the early 20th century known for his chamber and piano works before his career was cut short by his early death.
-
B.
Henri Cartan
Henri Cartan was a prominent French mathematician known for his foundational contributions to algebraic topology, homological algebra, and the theory of analytic functions.
-
C.
Élie Cartan
Élie Cartan was a pioneering French mathematician renowned for his foundational work in differential geometry, Lie groups, and the theory of symmetric spaces.
-
D.
Emile de Ruelle
Emile de Ruelle was a film editor active during the early 20th century, known for his work on Alfred Hitchcock’s 1929 thriller "Blackmail."
-
E.
Claude Chevalley
Claude Chevalley was a French mathematician renowned for his foundational contributions to algebraic geometry, number theory, and the theory of Lie groups and algebraic groups.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
human
ⓘ
mathematician ⓘ |
| countryOfCitizenship | France ⓘ |
| familyName |
Ehresmann
ⓘ
linked to:
Charles Ehresmann
|
| fieldOfWork |
category theory
ⓘ
differential geometry ⓘ differential topology ⓘ mathematics ⓘ |
| gender | male ⓘ |
| givenName | Charles ⓘ |
| influenced |
development of differential topology
ⓘ
development of modern category theory ⓘ theory of Lie groupoids and Lie algebroids ⓘ |
| knownFor |
Ehresmann connections
ⓘ
linked to:
Ehresmann connection
Ehresmann fibrations ⓘ
linked to:
Serre fibration
development of the theory of fiber bundles ⓘ foundational work in category theory ⓘ foundational work in differential topology ⓘ introduction of Lie groupoids ⓘ work on structured categories ⓘ |
| name | Charles Ehresmann ⓘ |
| nativeLanguage | French ⓘ |
| notableConcept |
Ehresmann connection
ⓘ
Ehresmann fibration ⓘ
linked to:
Ehresmann connection
Lie groupoid ⓘ fiber bundle ⓘ internal category ⓘ structured category ⓘ |
| occupation | university professor ⓘ |
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: Charles Ehresmann Description of subject: Charles Ehresmann was a French mathematician known for his foundational work in differential topology and category theory, including the development of concepts such as fiber bundles and Lie groupoids.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Charles Ehresmann