a person in the record
Samuel Gitler Hammer
Mathematician1933 to 2014
Wikidata names Norman Steenrod as doctoral advisor and lists 9 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 Wikidata9
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1938
- stated by Wikidata
- stated by Wikidata
- stated by Wikidata
- stated by Wikidata
- stated by Wikidata
- 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 WikidataNorman Steenrod
- 2 steps up
stated by WikidataSolomon Lefschetz
- 3 steps up
stated by WikidataWilliam Edward Story
- 4 steps up
stated by WikidataCarl Neumannstated by WikidataWilhelm Scheibner
Below them, within 3 steps, the record reaches 16 people: 16 stated by Wikidata.
Theses
- stated by Wikidatadoctoral thesis, stated by Wikidata
Education and career7
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- 1948 to 1952
- 1952 to 1956
- 1956 to 1960studied
- 1960 to 1961worked
- 1961 to 1987
- 1987 to 2001worked
- from 2001