Marina Ratner
- Born:
- October 30, 1938, Moscow, Soviet Union
- Nationality:
- American (naturalized)
- Profession(s):
- Mathematician
Early Life and Education
- Ratner received her undergraduate degree from Moscow State University.
- She immigrated to Israel in 1965.
- She earned her Ph.D. in mathematics from the Hebrew University of Jerusalem in 1969 under the supervision of Alexander Lubotzky.
Career and Major Achievements
- Ratner joined the faculty of the University of California, Berkeley in 1975.
- She became a full professor at Berkeley in 1982.
- She is best known for her groundbreaking work on ergodic theory, especially Ratner's theorems.
- Ratner's theorems concern measure classification and distribution results for unipotent flows on homogeneous spaces.
- She was awarded the Ostrowski Prize in 1993.
- She was elected to the National Academy of Sciences in 1991.
- She was awarded the AMS Centennial Fellowship in 1988.
Notable Works
- Ratner, M. (1990). "Raghunathan's topological conjecture and distributions of unipotent flows". Duke Math. J. 63 (1): 235–280.
- Ratner, M. (1991). "On Raghunathan's measure conjecture". Ann. of Math. (2) 134 (3): 545–607.
Legacy and Impact
Marina Ratner's profound contributions to ergodic theory have had a significant impact on the field. Her theorems provided solutions to long-standing conjectures and opened up new avenues of research. A detailed biography on Marina Ratner would further highlight the significance of her achievements in mathematics and her influence on future generations of mathematicians.