a person in the record
Nikolai Bakhvalov
Russian mathematician1934 to 2005
Wikidata names Andrey Kolmogorov, Sergei Godunov, and Sergei Sobolev as doctoral advisors, lists 7 doctoral students, and names Sergei Sobolev as teacher. Linked to Wikidata, Mathematics Genealogy Project, and 6 other registers.

How to read the marksstated by Wikidata or indexed by OpenAlex
Advisors on Wikidata3
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
- stated by Wikidata
- stated by Wikidata
Students on Wikidata7
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1937
- stated by Wikidataborn 1942
- stated by Wikidataborn 1944
- stated by Wikidataborn 1945
- stated by Wikidataborn 1949
- stated by Wikidataborn 1954
- stated by Wikidata
Teachers and mentors1
Wikidata's "student of" and "student" statements: a line of training beside the lineage, never a thesis supervision and never counted with one.
- a teacher or mentor, stated by Wikidata: not a thesis supervision
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 WikidataAndrey Kolmogorovstated by WikidataSergei Godunovstated by WikidataSergei Sobolev
- 2 steps up
stated by WikidataIvan Petrovskystated by WikidataNikolai Güntherstated by WikidataNikolai Luzinstated by WikidataVladimir Smirnov
- 3 steps up
stated by WikidataAleksandr Korkinstated by WikidataAndrey Markovstated by WikidataDmitri Egorovstated by WikidataVladimir Steklov
- 4 steps up
stated by WikidataAleksandr Lyapunovstated by WikidataNikolai Bugaevstated by WikidataOsip Somovstated by WikidataPafnuty Chebyshev
Below them, within 3 steps, the record reaches 59 people: 59 stated by Wikidata.
Education and career3
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- undated
- undated
- undated