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Paul (Pál) Turán (; 18 August 1910 – 26 September 1976)〔 〕〔 〕 was a Hungarian mathematician who worked primarily in number theory. He had a long collaboration with fellow Hungarian mathematician Paul Erdős, lasting 46 years and resulting in 28 joint papers.〔 〕 == Life and education == Turán was born into a Jewish family in Budapest on 18 August 1910.〔 He received a teaching degree at the University of Budapest in 1933 and the Ph.D. degree under Lipót Fejér in 1935 at Eötvös Loránd University.〔 As a Jew, he fell victim to numerus clausus, and could not get a university job for several years. He was sent to labour service at various times from 1940 to 1944. He is said to have been recognized and perhaps protected by a fascist guard, who, as a mathematics student, had admired Turán's work.〔"An officer was standing nearby, watching us work. When he heard my name, he asked the comrade whether I was a mathematician. It turned out, that the officer, Joshef Winkler, was an engineer. In his youth, he had placed in a mathematical competition; in civilian life he was a proof-reader at the print shop where the periodical of the Third Class of the Academy (Mathematical and Natural sciences) was printed. There he had seen some of my manuscripts." P. Turán, "A note of welcome", Journal of Graph Theory 1 (1977), pp. 7-9.〕 He became associate professor at the University of Budapest in 1945 and full professor in 1949.〔 First he married Edit (Klein) Kóbor in 1939 and had a son Robert then he married mathematician Vera Sós in 1952 and they had two children György and Tamás. 〔 〕 He died in Budapest on 26 September 1976〔 of leukemia.〔 〕 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「Pál Turán」の詳細全文を読む スポンサード リンク
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