Marina Ratner
Marina Evseevna Ratner (Russian: Мари́на Евсе́евна Ра́тнер; October 30, 1938 – July 7, 2017^{[1]}) was a professor of mathematics at the University of California, Berkeley who worked in ergodic theory.^{[2]} Around 1990, she proved a group of major theorems concerning unipotent flows on homogeneous spaces, known as Ratner's theorems.^{[3]} Ratner was elected to the American Academy of Arts and Sciences in 1992,^{[4]} awarded the Ostrowski Prize in 1993 and elected to the National Academy of Sciences the same year. In 1994, she was awarded the John J. Carty Award from the National Academy of Sciences.^{[5]}
Biographical information
Born in Moscow, Russian SFSR, Ratner was one of Yakov Sinai's students at the Moscow State University.^{[6]} She emigrated from the Soviet Union to Israel and taught at the Hebrew University 1971-1975. She then emigrated to the United States and became a professor of mathematics at Berkeley. ^{[7]}
References
- ^ In Memoriam: University of California, Berkeley website.
- ^ Larry Riddle, Biography of Marina Ratner
- ^ Dave Witte Morris, Ratner's Theorems on Unipotent Flows, ISBN 0-226-53984-9
- ^ Membership list, American Academy of Arts and Sciences, retrieved 2015-06-13.
- ^ "John J. Carty Award for the Advancement of Science". National Academy of Sciences. Archived from the original on 29 December 2010. Retrieved 25 February 2011.
- ^ Marina Ratner at the Mathematics Genealogy Project
- ^ http://www.upi.com/Archives/1987/12/03/Soviet-refusenik-to-be-released/2923565506000/
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