a person in the record
Johan Wästlund
Swedish mathematicianborn 1971
Supervised 1 doctoral student at Linköpings universitet in 2009; Wikidata names Anders Björner as doctoral advisor and lists 3 doctoral students. Linked to Wikidata, Mathematics Genealogy Project, and Wikipedia.

How to read the markscited by a repository's recordstated by Wikidata or indexed by OpenAlex
Students1
- cited by a thesis record
Martin Hessler“Optimization, Matroids and Error-Correcting Codes”
2009 · Linköpings universitet · doctoral
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 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 WikidataAnders Björner
- 2 steps up
stated by WikidataBernt Lindström
- 3 steps up
stated by WikidataOtto Frostman
- 4 steps up
stated by WikidataMarcel Riesz
Below them, within 3 steps, the record reaches 5 people: 1 cited by thesis records, 4 stated by Wikidata.
Education and career3
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- undated
- undated
- undatedworked