MATHEMATICIAN

Kiyosi Itô

1915 - 2008

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Kiyosi Itô (伊藤 清, Itō Kiyoshi; Japanese pronunciation: [itoː kiꜜjoɕi], 7 September 1915 – 10 November 2008) was a Japanese mathematician who made fundamental contributions to probability theory, in particular, the theory of stochastic processes. He invented the concept of stochastic integral and stochastic differential equation, and is known as the founder of so-called Itô calculus. He also pioneered the connections between stochastic calculus and differential geometry, known as stochastic differential geometry. He was invited for the International Congress of Mathematicians in Stockholm in 1962. Read more on Wikipedia

His biography is available in 31 different languages on Wikipedia (up from 29 in 2024). Kiyosi Itô is the 353rd most popular mathematician (down from 298th in 2024), the 658th most popular biography from Japan (down from 560th in 2019) and the 3rd most popular Japanese Mathematician.

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Among MATHEMATICIANS

Among mathematicians, Kiyosi Itô ranks 353 out of 1,004. Before him are Klára Dán von Neumann, Viktor Bunyakovsky, Giambattista Benedetti, Gaston Julia, Andreas Osiander, and Johannes Widmann. After him are Abraham bar Hiyya, Liu Xin, Caspar Wessel, Al-Sijzi, Paul Neményi, and Nicholas Mercator.

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Contemporaries

Among people born in 1915, Kiyosi Itô ranks 88. Before him are Denis Thatcher, Ibolya Csák, Kunihiko Kodaira, Peter Medawar, Godfrey Brown, and Branko Ćopić. After him are Horst Sindermann, Thomas Merton, William Masters, Arsenio Erico, Kon Ichikawa, and Ghulam Ishaq Khan. Among people deceased in 2008, Kiyosi Itô ranks 85. Before him are Marcial Maciel, Ken Naganuma, Bo Diddley, Mate Parlov, Pak Song-chol, and Dora Ratjen. After him are Don S. Davis, Paul Scofield, Anthony Minghella, Cyd Charisse, Manuel Marulanda, and Jean Delannoy.

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In Japan

Among people born in Japan, Kiyosi Itô ranks 658 out of 6,245. Before him are Takaaki Kajita (1959), Machiko Kyō (1924), Hisao Sekiguchi (1954), Minamoto no Yorimasa (1106), Emperor Horikawa (1079), and Kiyoshi Kurosawa (1955). After him are Masashi Kishimoto (1974), Yoshio Nishina (1890), Teruki Miyamoto (1940), Momoko Kōchi (1932), Emperor Reizei (949), and Keisuke Okada (1868).

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Among MATHEMATICIANS In Japan

Among mathematicians born in Japan, Kiyosi Itô ranks 3. Before him are Seki Takakazu (1642), and Kunihiko Kodaira (1915). After him are Heisuke Hironaka (1931), Goro Shimura (1930), Yutaka Taniyama (1927), Mikio Sato (1928), Shigefumi Mori (1951), Kenkichi Iwasawa (1917), Yasumasa Kanada (1948), Shinichi Mochizuki (1969), and Christopher Zeeman (1925).

Japanese born Mathematicians

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