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Donald Bruce Gillies (October 15, 1928 – July 17, 1975) was a Canadian mathematician and computer scientist, known for his work in game theory, computer design, and minicomputer programming environments. == Education == Donald B. Gillies was born in Toronto, Canada and attended the University of Toronto Schools, a laboratory school originally affiliated with the University. Students at this Ontario school skipped a year ahead and so he finished his 13th-grade studies at the age of 18. Gillies attended the University of Toronto (1946–1950), intending to major in Languages and started his first semester taking seven different language courses. In his second semester he quickly switched back to majoring in Mathematics which was his love while in high school. During his time as an undergraduate, he spent a great deal of time at the U-Toronto Computation Center. In the Putnam exam competition of 1950, Gillies was stunned at not being selected by the faculty to compete with the U-Toronto team. To avenge himself, Gillies placed in the top 10 in North America, following his University of Toronto classmates John P. Mayberry and Richard J. Semple who were top 5 Putnam Fellows. Toronto would likely have won the competition in 1950 had Gillies been on the faculty-designated team.〔 L.E. Bush, William Lowell Putnam Mathematical Competition, American Math Monthly Vol 57 No 7 (Aug-Sep 1950) pp 467-470〕 For graduate school, Gillies applied to the University of Illinois University of Illinois at Urbana-Champaign, which was "a very busy place building lots of computers". While he was there, he began working on the ORDVAC/Illiac I project. After one year of graduate school (1951), Gillies transferred to Princeton University to work with John von Neumann, at the urging of and also to be with John P. Mayberry, who was also studying under John von Neumann. Gillies and Mayberry were both arch-rivals and best friends, and after Mayberry beat Gillies in the Putnam exam, each competed to finish their PhD degree first. At Princeton Gillies met his future wife, Alice E. Dunkle, and began dating her, but after several months, their relationship fizzled. Miss Dunkle, knowing of the rivalry between Mayberry and Gillies, intentionally flirted with Mayberry, who subsequently approached Gillies to ask if he was still dating her. This tactic, used only once, led to their eventual marriage. During his graduate studies, and after working with von Neumann, Gillies became a fan of the book "One-upmanship" by Stephen Potter. John von Neumann was also a fan of this work, and was extremely successful at impressing others with his intelligence. An apocryphal math problem asks about a bumble bee flying back and forth between two approaching trains, and how far did it fly before colliding? When von Neumann gave the correct answer, the questioner asked if he used a standard time/rate-of-travel trick, and he replied, 'no, I summed the infinite series in my head' to impress the questioner. This method of impressing and astonishing others appealed to both Gillies and von Neumann. During his time at Princeton his interest area was computer design first and mathematics second. He continued to work with U-Illinois researchers and participated the check-out of the ORDVAC Computer (from U-Illinois) at Aberdeen Proving Ground in Maryland, in the summer of 1951. At one point during his graduate studies, Von Neumann found out that Gillies had been spending time working on an Assembler (something that had not yet been invented). Von Neumann became enraged and told Gillies to stop work immediately because computers would never be used to perform such menial tasks.〔(Douglas Jones (U-Iowa Faculty), alt.folklore.computers, 14 July 2000 )〕 After only two years of study at Princeton, Gillies completed his PhD before Mayberry, at age 25, in 1953, which was published in ''Contributions to the theory of games, vol.2'' — in which he characterized the ''core'' which is the set of stable solutions in a non-zero sum game. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Donald B. Gillies」の詳細全文を読む スポンサード リンク
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