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Person: Ostrovskii, Iossif Vladimirovich
Iossif Ostrovskii was a Ukrainian mathematician who worked in the theory of integer and meromorphic functions and their application in the theory of probability.
Mathematical Profile (Excerpt):
 It was in 1954 that Levin organised a research seminar on function theory, and Ostrovskii became one of its most active participants.
 Ostrovskii graduated from Kharkov State University in 1956 and began undertaking research advised by Levin.
 From 1958 Ostrovskii taught at Kharkov University, becoming the head of the Department of Function Theory in 1963.
 To obtain these results, Ostrovskii had proved a stronger version of the WimanValiron theorem on the behaviour of an entire function in a neighbourhood of points where its modulus attains the maximum value on the circle.
 A collaboration between Ostrovskii and Anatolii Asirovich Goldberg led to important results.
 This led to Goldberg collaborating with Levin's colleagues at Kharkov University, in particular with Ostrovskii.
 In 1972 Ostrovskii published another important monograph, this time in collaboration with Yuri Vladimirovich Linnik.
 Ostrovskii's 1970 book with Goldberg was also translated into English but this did not appear until 2008.
 Ostrovskii was appointed to head the Department of Function Theory at the Low Temperature Physics and Technology Institute of the Ukrainian Academy of Sciences in 1986.
 There are many other areas to which Ostrovskii has made a major contribution.
 In the 1980s Ostrovskii wrote a number of papers on the asymptotic behaviour of entire functions that are characteristic functions of probability measures.
 Iosif Vladimirovich has taught many pupils, and three of them have become doctors of science.
 Iosif Vladimirovich gives a great deal of attention to his students.
Born 6 April 1934, Dnepropetrovsk, Ukraine. Died 29 November 2020, Ankara, Turkey.
View full biography at MacTutor
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Origin Ukraine
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References
Adapted from other CC BYSA 4.0 Sources:
 Oâ€™Connor, John J; Robertson, Edmund F: MacTutor History of Mathematics Archive