Thomas Henry Callahan: advisors and students

a person in the record

Thomas Henry Callahan

Ph.D. University of Toronto 1974

Wikidata names Hans Heilbronn as doctoral advisor. Linked to Wikidata and Mathematics Genealogy Project.

Two steps up and one down. Solid lines from Wikidata. The full sheet opens at four up and two down.

How to read the marksstated by Wikidata or indexed by OpenAlex

From Wikidata, shown separately from the thesis records.

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 WikidataHans Heilbronn
2 steps up
stated by WikidataEdmund Landau
3 steps up
stated by WikidataFerdinand Georg Frobeniusstated by WikidataLazarus Fuchs
4 steps up
stated by WikidataErnst Kummerstated by WikidataKarl Weierstraß

From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.