Dmitri Egorov Explained

Dmitri Egorov
Birth Name:Dmitri Fyodorovich Egorov
Birth Date:22 December 1869
Death Place:Kazan, Soviet Union
Citizenship:Russian Empire
Soviet Union
Nationality:Russian
Field:Mathematics
Work Institution:Imperial Moscow University
Moscow State University
Education:Doctor of Science (1901)
Corresponding Member of the Russian Academy of Sciences
Alma Mater:Imperial Moscow University (1891)
Thesis Title:Concerning One Class of Orthogonal Systems
Thesis1 Url:and
Thesis2 Url:)-->
Thesis Year:1901
Doctoral Advisor:Nikolai Bugaev
Doctoral Students:Pavel Alexandrov
Nikolai Luzin
Ivan Petrovsky
Ivan Privalov
Adolf Yushkevich
Dmitrii Menshov
Known For:Works on differential geometry and mathematical analysis, Egorov's Theorem, president of the Moscow Mathematical Society

Dmitri Fyodorovich Egorov (Russian: Дми́трий Фёдорович Его́ров; December 22, 1869 – September 10, 1931) was a Russian and Soviet mathematician known for contributions to the areas of differential geometry and mathematical analysis. He was President of the Moscow Mathematical Society (1923–1930).

Life

Egorov held spiritual beliefs to be of great importance, and openly defended the Church against Marxist supporters after the Russian Revolution. He was elected president of the Moscow Mathematical Society in 1921, and became director of the Institute for Mechanics and Mathematics at Moscow State University in 1923. He also edited the journal Matematicheskii Sbornik of the Moscow Mathematical Society.[1] However, because of Egorov's stance against the repression of the Russian Orthodox Church, he was dismissed from the Institute in 1929 and publicly rebuked. In 1930 he was arrested and imprisoned as a "religious sectarian", and soon after was expelled from the Moscow Mathematical Society. Upon imprisonment, Egorov began a hunger strike until he was taken to the prison hospital, and eventually to the house of fellow mathematician Nikolai Chebotaryov where he died. He was buried in Arskoe Cemetery in Kazan.[2]

Research work

Egorov studied potential surfaces and triply orthogonal systems, and made contributions to the broader areas of differential geometry and integral equations. His work was influenced by that of Jean Gaston Darboux on differential geometry and by Henri Lebesgue in mathematical analysis. A theorem in real analysis and integration theory, Egorov's Theorem, is named after him.[3]

Works

Bibliography

Notes and References

  1. . Reprinted in .
  2. O'Connor, J. J., and Robertson, E. F., "Dimitri Fedorovich Egorov," MacTutor. January 2012. FRetrieved 11 August 2020.
  3. He published a proof of this theorem in the short paper, and the result become widely acknowledged under his name. Carlo Severini had published a proof of the same result a year before, in the paper ; however, the work of Severini was unnoticed until Leonida Tonelli recalled attention on it (see the entry about Carlo Severini for further details).