### Grigori Perelman

Grigori Yakovlevich Perelman (Russian: Григорий Яковлевич Перельман, IPA: <ɡrʲɪˈɡorʲɪj ˈjakəvlʲɪvʲɪtɕ pʲɪrʲɪlʲˈman> (listen); born 13 June 1966) is a Russian mathematician who is known for his contributions to the fields of geometric analysis, Riemannian geometry, & geometric topology. In the 1990s, partly in collaboration with Yuri Burago, Mikhael Gromov, và Anton Petrunin, he made influential contributions khổng lồ the study of Alexandrov spaces. In 1994, he proved the soul conjecture in Riemannian geometry, which had been an mở cửa problem for the previous trăng tròn years. Read more on WikipediaSince 2007, the English Wikipedia page of Grigori Perelman has received more than 2,878,996 page views. His biography is available in 63 different languages on Wikipedia (up from 60 in 2019). Grigori Perelman is the 128th most popular mathematician (up from 196th in 2019), the 267th most popular biography from Russia (up from 395th in 2019) và the 9th most popular Russian Mathematician.

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Grigori Perelman is most famous for solving the Poincare conjecture, which is the idea that any three-dimensional sphere is homeomorphic to lớn the three-dimensional sphere.

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Among mathematicians, Grigori Perelman ranks **128** out of 828. Before him are Giambattista della Porta, Theon of Alexandria, Thābit ibn Qurra, William Oughtred, Marian Rejewski, & Joseph Liouville. After him are Scipione del Ferro, Vincenzo Viviani, Aleksandr Lyapunov, Sophus Lie, Andrew Wiles, and Liu Hui.

Among people born in 1966, Grigori Perelman ranks **13**. Before him are Adam Sandler, Helena Bonham Carter, Hristo Stoichkov, George Weah, Luke Perry, & Halle Berry. After him are Vincent Cassel, Roman Abramovich, René Higuita, David Cameron, Kiefer Sutherland, và Robin Wright.

Among people born in Russia, Grigori Perelman ranks **267** out of 2,688. Before him are Sergey Lavrov (1950), Gennady Zyuganov (1944), Grand Duchess Alexandra Pavlovna of Russia (1783), Grand Duke Vladimir Alexandrovich of Russia (1847), Alexander Oparin (1894), & Vasily Blokhin (1895). After him are Vitaly Ginzburg (1916), Vsevolod Meyerhold (1874), Grand Duke Nicholas Nikolaevich of Russia (1856), Nikolai Yudenich (1862), Albert Frederick, Duke of Prussia (1553), & Eduard Limonov (1943).

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Among mathematicians born in Russia, Grigori Perelman ranks **9**. Before him are Sofia Kovalevskaya (1850), Nikolai Lobachevsky (1792), Andrey Kolmogorov (1903), Christian Goldbach (1690), Alexander Friedmann (1888), & Leonid Kantorovich (1912). After him are Aleksandr Lyapunov (1857), Andrey Markov (1856), Igor Ansoff (1918), Nikolay Bogolyubov (1909), Olga Ladyzhenskaya (1922), và Pavel Alexandrov (1896).