Cassius Ionescu-Tulcea

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Cassius Tocqueville Ionescu Tulcea (Romanian: Casius Ionescu-Tulcea; October 14, 1923 – March 6, 2021) was a Romanian-American mathematician, specializing in probability theory, statistics and mathematical analysis.[1]

Ionescu Tulcea was born in October 1923 in

University of Illinois at Urbana–Champaign. He became in 1966 a full professor at Northwestern University[1]
and retired from there as professor emeritus.

His marriage to Alexandra Ionescu Tulcea lasted from 1956 to 1969 when they divorced. During their marriage, the two mathematicians wrote a number of papers together, as well as a well-regarded research monograph on lifting theory. John von Neumann initiated lifting theory in functional analysis with applications in probability theory. The Ionescu-Tulcea theorem, an important existence theorem for time-discrete stochastic processes, is named after Cassius Ionescu Tulcea (1949). He also did research on mathematical game theory and mathematical economics. He co-authored a book on casino gambling and several textbooks on mathematics; he also wrote a 1981 book on casino dice games and gambling systems and a 1982 book on casino blackjack.

In 1957 he was awarded the Prize of the Romanian Academy of Sciences. His doctoral students include George Maltese and Robert Langlands.

He turned 90 in October 2013

Chicago, Illinois in March 2021, at the age of 97.[5][6][7]

Selected publications

References

  1. ^ a b Dinculeanu, Nicolae (2013). "To Professor Cassius Ionescu Tulcea on the occasion of his 90th birthday". Annals of the University of Bucharest (Mathematical Series). 4 (LXII): 421–424.
  2. ^ American Men and Women of Science (2004), Thomson Gale
  3. ^ Cassius Ionescu Tulcea at the Mathematics Genealogy Project
  4. ^ To Professor Cassius T. Ionescu Tulcea on the occasion of his 90th birthday
  5. ^ In Memoriam: Cassius Ionescu Tulcea
  6. ^ IMAR Home Page
  7. ^ Forever Missed: Cassius Ionescu-Tulcea
  8. ISSN 0008-4395
    .
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