Obituaries: Yuri Vasilyevich Prokhorov

November 1, 2013


Yuri Vasilyevich Prokhorov
Yuri Vasilyevich Prokhorov was born in December of 1929 and died in July 2013 at the age of 83. He received his doctorate at Moscow State University, under the guidance of Andrey Kolmogorov. That was in 1956, a time when activity in probability theory was at its peak in the former Soviet Union.

Prokhorov's thesis, which dealt with weak convergence of probability measures on complete separable metric (Polish) spaces, continues to play an important role in the theory of stochastic processes. Prokhorov's compactness criterion for families of probability measures on a Polish space is a standard tool in proving limit theorems for stochastic processes. He made important contributions to probability as well as to statistics.

A member of the Russian Academy of Sciences, Prokhorov spent most of his professional life at the Steklov Institute of Mathematics, where he succeeded Kolmogorov as head of the probability section. He was the recipient of many honors, including the Lenin Prize.

For more than 40 years, Prokhorov was editor-in-chief of Teoriya Veroyatnostei i ee Primeneniya, the Soviet–Russian journal in applied probability that SIAM has long published in translation as Theory of Probability and Its Applications.---S.R.S. Varadhan, Courant Institute of Mathematical Sciences, New York University.


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