Marina Ratner
Russian mathematician (1938-2017) · United States · On the map · Academics · Died at 78
Marina Evseevna Ratner was a professor of mathematics at the University of California, Berkeley who worked in ergodic theory. Around 1990, she proved a group of major theorems concerning unipotent flows on homogeneous spaces, known as Ratner's theorems.
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A typical day, 30 days to 17 June 2026
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Ratner was elected to the American Academy of Arts and Sciences in 1992, 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.
