a person in the record
Gideon Jan Verdam
1802 to 1866
Wikidata names Jacob de Gelder and Simon Speijert van der Eijk as doctoral advisors and lists 5 doctoral students. Linked to Wikidata, Mathematics Genealogy Project, and 3 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
- stated by Wikidata
Students on Wikidata5
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1822
- stated by Wikidataborn 1841
- stated by Wikidata
- stated by Wikidata
- stated by Wikidata
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 WikidataJacob de Gelderstated by WikidataSimon Speijert van der Eijk
- 2 steps up
stated by WikidataJean Henri van Swinden
- 3 steps up
stated by WikidataJohan Lulofsstated by WikidataJohann Friedrich Hennert
- 4 steps up
stated by WikidataLeonhard Euler
Below them, within 3 steps, the record reaches 24 people: 24 stated by Wikidata.
Education and career6
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- 1826 to 1828worked
- from 1839worked
- 1845 to 1866worked
- undatedstudied
- undatedworked
- undatedworked