David Blackwell

David Blackwell
Blackwell in 1999
Born
David Harold Blackwell

(1919-04-24)April 24, 1919
DiedJuly 8, 2010(2010-07-08) (aged 91)
EducationUniversity of Illinois at Urbana-Champaign (BA, MA, PhD)
Known forRao–Blackwell theorem
Blackwell channel
Blackwell's contraction mapping theorem
Blackwell order
Arbitrarily varying channel
Bayesian statistics
Dirichlet distribution
Games of imperfect information
Mathematical economics
Recursive economics
Sequential analysis
AwardsJohn von Neumann Theory Prize (1979)
R. A. Fisher Lectureship (1986)
National Medal of Science (2012)
Scientific career
FieldsProbability
Statistics
Logic
Game theory
Dynamic programming
InstitutionsUniversity of California, Berkeley
ThesisSome properties of Markoff chains (1941)
Doctoral advisorJoseph Leo Doob
Doctoral students

David Harold Blackwell (April 24, 1919 – July 8, 2010) was an American statistician and mathematician who made significant contributions to game theory, probability theory, information theory, and statistics. He is one of the eponyms of the Rao–Blackwell theorem, and is also known for the Blackwell channel, Blackwell's contraction mapping theorem, Blackwell's approachability theorem, and the Blackwell order. He was the first African American inducted into the National Academy of Sciences, the first African American full professor with tenure at the University of California, Berkeley, and the seventh African American to receive a Ph.D. in mathematics. In 2012, President Barack Obama posthumously awarded Blackwell the National Medal of Science.

Blackwell was also a pioneer in textbook writing. He wrote one of the first Bayesian statistics textbooks, his 1969 Basic Statistics. By the time he retired, he had published over 90 papers and books on dynamic programming, game theory, and mathematical statistics.