Nikolai Lusin
| Nikolai Luzin | |
|---|---|
 |
|
| Born |
9 December 1883 Irkutsk, Russian Empire |
| Died | 28 January 1950 (aged 66) Moscow, Soviet Union |
| Nationality | Russia |
| Citizenship |
Russian Empire Soviet Union |
| Alma mater | Moscow State University |
| Known for | Contributions to descriptive set theory, mathematical analysis, point-set topology; Luzin's theorem, Lusin spaces, Luzin sets; |
| Scientific career | |
| Fields | Mathematician |
| Institutions |
Moscow State University Steklov Mathematical Institute Polytechnical Institute Ivanovo-Voznesensk |
| Thesis | The Integral and Trigonometric Series (1915) |
| Doctoral advisor | Dmitri Egorov |
| Doctoral students |
Pavel Aleksandrov Nina Bari Aleksandr Khinchin Andrey Kolmogorov Alexander Kronrod Mikhail Lavrentyev Alexey Lyapunov Lazar Lyusternik Pyotr Novikov Lev Schnirelmann Pavel Urysohn |
Nikolai Nikolaevich Luzin (also spelled Lusin; Russian: Никола́й Никола́евич Лу́зин, IPA: [nʲɪkɐˈlaj nʲɪkɐˈlaɪvʲɪtɕ ˈluzʲɪn] (
listen); 9 December 1883 – 28 January 1950) was a Soviet/Russian mathematician known for his work in descriptive set theory and aspects of mathematical analysis with strong connections to point-set topology. He was the eponym of Luzitania, a loose group of young Moscow mathematicians of the first half of the 1920s. They adopted his set-theoretic orientation, and went on to apply it in other areas of mathematics.
He started studying mathematics in 1901 at Moscow State University, where his advisor was Dimitri Egorov. He graduated in 1905.
Luzin underwent great personal turmoil in the years 1905 and 1906, when his materialistic worldview had collapsed and he found himself close to suicide. In 1906 he wrote to Pavel Florensky, a former fellow mathematics student who was now studying theology: You found me a mere child at the University, knowing nothing. I don't know how it happened, but I cannot be satisfied any more with analytic functions and Taylor series ... it happened about a year ago. ... To see the misery of people, to see the torment of life, to wend my way home from a mathematical meeting ... where, shivering in the cold, some women stand waiting in vain for dinner purchased with horror - this is an unbearable sight. It is unbearable, having seen this, to calmly study (in fact to enjoy) science. After that I could not study only mathematics, and I wanted to transfer to the medical school. The correspondence between the two men continued for many years and Luzin was greatly influenced by Florensky's religious treatise The Pillar and Foundation of Truth (1908).
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