Johan Jensen
E412924
Johan Jensen was a Danish mathematician best known for his contributions to convex analysis and for formulating the inequality that bears his name.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Johan Jensen canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4092159 — 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: Johan Jensen Context triple: [Jensen's inequality, namedAfter, Johan Jensen]
-
A.
Niels Jensen
Niels Jensen is a software entrepreneur best known as one of the founders of the software company Borland.
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B.
Armin Hansen
Armin Hansen was an American painter known for his dynamic marine scenes and contributions to early 20th-century California art.
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C.
Sven Simonsen
Sven Simonsen is an entrepreneur best known as a founder of the semiconductor company Advanced Micro Devices (AMD).
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D.
Helge Petersen
Helge Petersen was a mountaineer known for making the first recorded ascent of Greenland’s highest peak, Gunnbjørn Fjeld.
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E.
Joachim Lemelsen
Joachim Lemelsen was a German Wehrmacht general during World War II who held several high-ranking field commands on the Eastern and Italian fronts.
- 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: Johan Jensen Target entity description: Johan Jensen was a Danish mathematician best known for his contributions to convex analysis and for formulating the inequality that bears his name.
-
A.
Niels Jensen
Niels Jensen is a software entrepreneur best known as one of the founders of the software company Borland.
-
B.
Armin Hansen
Armin Hansen was an American painter known for his dynamic marine scenes and contributions to early 20th-century California art.
-
C.
Sven Simonsen
Sven Simonsen is an entrepreneur best known as a founder of the semiconductor company Advanced Micro Devices (AMD).
-
D.
Helge Petersen
Helge Petersen was a mountaineer known for making the first recorded ascent of Greenland’s highest peak, Gunnbjørn Fjeld.
-
E.
Joachim Lemelsen
Joachim Lemelsen was a German Wehrmacht general during World War II who held several high-ranking field commands on the Eastern and Italian fronts.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
Danish mathematician
ⓘ
human ⓘ mathematician ⓘ |
| areaOfInfluence |
convex functions
ⓘ
real analysis ⓘ |
| countryOfCitizenship | Denmark ⓘ |
| familyName | Jensen ⓘ |
| fieldOfWork |
convex analysis
ⓘ
mathematics ⓘ |
| gender | male ⓘ |
| givenName | Johan ⓘ |
| hasEponymousConcept |
Jensen inequality
ⓘ
surface form:
Jensen's inequality
|
| hasNotableEponym |
Jensen inequality
ⓘ
surface form:
Jensen's inequality
|
| hasWorkInDomain |
convex functions and inequalities
ⓘ
inequalities in analysis ⓘ |
| influenced |
functional analysis
ⓘ
information theory ⓘ modern convex analysis ⓘ probability theory ⓘ |
| knownFor |
Jensen inequality
ⓘ
surface form:
Jensen's inequality
contributions to convex analysis ⓘ |
| languageOfWorkOrName | Danish ⓘ |
| name | Johan Jensen self-link ⓘ |
| nationality | Danish ⓘ |
| notability | best known for Jensen's inequality ⓘ |
| notableWork | formulation of Jensen's inequality ⓘ |
| occupation | mathematician ⓘ |
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: Johan Jensen Description of subject: Johan Jensen was a Danish mathematician best known for his contributions to convex analysis and for formulating the inequality that bears his name.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Jensen's inequality