a person in the record
Thomas Sonar
German mathematician and historian of mathematicsborn 1958
Wikidata names Keith William Morton and Wolfgang Wendland as doctoral advisors and lists 37 doctoral students. Linked to Wikidata, ORCID, and 7 other registers.

How to read the markscited by a repository's recordstated by Wikidata or indexed by OpenAlexclaimed on an ORCID list, or inferred
Advisors on Wikidata2
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
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Students on Wikidata37
From Wikidata, shown separately from the thesis records.
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The line above and below4 steps
The advisors of their advisors, four steps up at most, in the thesis records and on Wikidata, each kind marked; a person in both is listed once.
- 1 step up
stated by WikidataKeith William Mortonstated by WikidataWolfgang Wendland
- 2 steps up
stated by WikidataHarold Gradstated by WikidataKarl Jaeckelstated by WikidataWolfgang Haack
- 3 steps up
stated by WikidataRichard Courantstated by WikidataRobert Haussnerstated by WikidataWerner Schmeidler
- 4 steps up
stated by WikidataDavid Hilbertstated by WikidataEdmund Landaustated by WikidataErnst Christian Julius Scheringstated by WikidataHermann Schwarz
Below them, within 3 steps, the record reaches 86 people: 86 stated by Wikidata.
Education and career2
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- undatedstudied
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