1. Grigory Aleksandrovich Margulis is a Russian-American mathematician known for his work on lattices in Lie groups, and the introduction of methods from ergodic theory into diophantine approximation.
11 Facts About Grigory Margulis
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Grigory Margulis was awarded a Fields Medal in 1978, a Wolf Prize in Mathematics in 2005, and an Abel Prize in 2020, becoming the fifth mathematician to receive the three prizes.
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Grigory Margulis received his PhD in 1970 from the Moscow State University, starting research in ergodic theory under the supervision of Yakov Sinai.
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Grigory Margulis was awarded the Fields Medal in 1978, but was not permitted to travel to Helsinki to accept it in person, allegedly due to antisemitism against Jewish mathematicians in the Soviet Union.
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Grigory Margulis's position improved, and in 1979 he visited Bonn, and was later able to travel freely, though he still worked in the Institute of Problems of Information Transmission, a research institute rather than a university.
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In 1991, Grigory Margulis accepted a professorial position at Yale University.
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Grigory Margulis was elected a member of the US National Academy of Sciences in 2001.
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Yakov Sinai 8.
In 2005, Grigory Margulis received the Wolf Prize for his contributions to theory of lattices and applications to ergodic theory, representation theory, number theory, combinatorics, and measure theory.
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Therefore, these results of Grigory Margulis pave a way for classification of lattices.
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In 1986, Grigory Margulis gave a complete resolution of the Oppenheim conjecture on quadratic forms and diophantine approximation.
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Grigory Margulis has formulated a further program of research in the same direction, that includes the Littlewood conjecture.