MATHEMATICIAN

Pavel Urysohn

1898 - 1924

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Pavel Samuilovich Urysohn (in Russian: Па́вел Самуи́лович Урысо́н; 3 February, 1898 – 17 August, 1924) was a Soviet mathematician who is best known for his contributions in dimension theory, and for developing Urysohn's metrization theorem and Urysohn's lemma, both of which are fundamental results in topology. He also constructed what is now called the Urysohn universal space and his name is also commemorated in the terms Fréchet–Urysohn space, Menger–Urysohn dimension and Urysohn integral equation. He and Pavel Alexandrov formulated the modern definition of compactness in 1923. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Pavel Urysohn is the 471st most popular mathematician (up from 494th in 2019), the 400th most popular biography from Ukraine (up from 475th in 2019) and the 16th most popular Ukrainian Mathematician.

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Among MATHEMATICIANS

Among mathematicians, Pavel Urysohn ranks 471 out of 1,004. Before him are Campanus of Novara, Ismaël Bullialdus, Abraham Fraenkel, August Leopold Crelle, Michael O. Rabin, and Eric Temple Bell. After him are Charles Julien Brianchon, William Sealy Gosset, Hermann Hankel, Robert Langlands, W. V. D. Hodge, and Al-Samawal al-Maghribi.

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Contemporaries

Among people born in 1898, Pavel Urysohn ranks 121. Before him are Ninette de Valois, Marcel Griaule, Princess Eudoxia of Bulgaria, Josep Sunyol, Vladimir Dekanozov, and Kaj Munk. After him are Messali Hadj, Karl Koller, Vilhelm Moberg, Ada Blackjack, Benjamin Fondane, and Princess Marie-Auguste of Anhalt. Among people deceased in 1924, Pavel Urysohn ranks 63. Before him are Nilo Peçanha, Oskar Merikanto, Wilhelm Roux, Duke Peter Alexandrovich of Oldenburg, Hans Thoma, and Xaver Scharwenka. After him are Jacob Israël de Haan, Cipriano Castro, Klara Zamenhof, Charles Villiers Stanford, Jean-François Raffaëlli, and Gregory VII of Constantinople.

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In Ukraine

Among people born in Ukraine, Pavel Urysohn ranks 400 out of 1,365. Before him are Pavlo Tychyna (1891), Kazimierz Ajdukiewicz (1890), Valentin Kataev (1897), Sydir Kovpak (1887), Anatoly Onoprienko (1959), and Eugen Schauman (1875). After him are Hélène Sparrow (1891), Yuriy Drohobych (1450), Yevgenia Bosch (1879), Verka Serduchka (1973), Abba P. Lerner (1903), and Vera Kholodnaya (1893).

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Among MATHEMATICIANS In Ukraine

Among mathematicians born in Ukraine, Pavel Urysohn ranks 16. Before him are Alfred J. Lotka (1880), Vladimir Drinfeld (1954), Igor Shafarevich (1923), Sergei Natanovich Bernstein (1880), Abram Samoilovitch Besicovitch (1891), and Kazimierz Ajdukiewicz (1890). After him are Georgy Voronoy (1868), Viktor Sadovnichiy (1939), Joseph Ludwig Raabe (1801), Mark Krein (1907), Jerzy Różycki (1909), and Alexander Ostrowski (1893).

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