- Kiyoshi Itō
Infobox Scientist
name = Kiyoshi Itō
birth_date = Birth date and age|1915|09|07
birth_place = Hokusei, Mie,Honshū ,Japan
residence =
nationality =Japan ese
field =Mathematics
work_institutions =University of Aarhus Cornell University University of Kyoto
alma_mater =Imperial University Tokyo
doctoral_advisor =
doctoral_students =Masatoshi Fukushima Murali Rao Shinzo Watanabe
known_for =Itō calculus
influences =
influenced =
prizes =Wolf Prize in Mathematics (1987),Gauss Prize (2006)
footnotes = nihongo|Kiyoshi Itō|伊藤 清|Itō Kiyoshi (bornSeptember 7 1915 ) is aJapan ese mathematician whose work is now calledItō calculus . The basic concept of this calculus is theItō integral , and the most basic among important results isItō's lemma . It facilitates mathematical understanding of random events. His theory is widely applied, for instance infinancial mathematics .Although the standard
Hepburn romanization of his name is "Itō", the spellings Itô (as inKunrei-shiki romanization ) or Ito are often seen in the West as well.Biography
Itō was born in Hokusei (Inabe) in
Mie Prefecture on the main island ofHonshū . After high school he studiedmathematics at theImperial University Tokyo , from which he graduated at the age of 23. After that he started to work for the national statistical office, where he published two of his seminal works onprobability andstochastic processes .In 1945, he was awarded a
Ph.D. for his work. Seven years later he became a professor at theUniversity of Kyoto , where he remained until his retirement in 1979. In addition, he held professorships atUniversity of Aarhus from 1966 to 1969, andCornell University from 1969 to 1975. Itō was awarded the inauguralCarl Friedrich Gauss Prize in 2006 for his lifetime achievements.His youngest daughter
Junko Itō is professor ofLinguistics at theUniversity of California, Santa Cruz , specializing inphonology . As her father was unable due to his advanced age to travel toMadrid , she received theGauss Prize from the King of Spain on his behalf.References
*MacTutor Biography|id=Ito
*cite journal | last=Protter | first=Philip | title=The Work of Kyoshi Itō | journal=Notices of the American Mathematical Society | volume=vol. 54 | issue=no. 6 | pages=pp. 744–745 | id= | month=June/July | year=2007 | url=http://www.ams.org/notices/200706/tx070600744p.pdf | format=.PDF | accessdate=2007-09-20External links
*MathGenealogy|id=93772
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