a person in the record
Jacob Cardinaal
Dutch mathematician1848 to 1922
Wikidata names Jan de Vries as doctoral advisor and lists 3 doctoral students. Linked to Wikidata, Mathematics Genealogy Project, and 5 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 Wikidata1
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
Students on Wikidata3
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1883
- stated by Wikidataborn 1887
- stated by Wikidataborn 1892
The line above and below2 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 WikidataJan de Vries
- 2 steps up
stated by WikidataAdrianus Jacobus van Pesch
Below them, within 3 steps, the record reaches 31 people: 31 stated by Wikidata.
Education and career3
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- 1893 to 1894
- 1894 to 1919
- undatedstudied