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András Hajnal (born May 13, 1931) is an emeritus professor of mathematics at Rutgers University〔(Rutgers University Department of Mathematics – Emeritus Faculty ).〕 and a member of the Hungarian Academy of Sciences〔(Hungarian Academy of Sciences, Section for Mathematics ).〕 known for his work in set theory and combinatorics. ==Biography== Hajnal was born on 13 May 1931,〔(Curriculum vitae ).〕 in Budapest, Hungary. He received his university diploma (M.Sc. degree) in 1953 from the Eötvös Loránd University,〔(A halmazelmélet huszadik századi "Hajnal A" ), M. Streho's interview with A. H., ''Magyar Tudomány'', 2001.〕 his Candidate of Mathematical Science degree (roughly equivalent to Ph.D.) in 1957, under the supervision of László Kalmár,〔. The 1957 date is from Hajnal's cv; the mathematics genealogy site lists the date of Hajnal's Ph.D. as 1956.〕 and his Doctor of Mathematical Science degree in 1962. From 1956 to 1995 he was a faculty member at the Eötvös Loránd University; in 1994, he moved to Rutgers University to become the director of DIMACS, and he remained there as a professor until his retirement in 2004.〔 He became a member of the Hungarian Academy of Sciences in 1982, and directed its mathematical institute from 1982 to 1992.〔 He was general secretary of the János Bolyai Mathematical Society from 1980 to 1990, and president of the society from 1990 to 1994.〔 Since 1981, he has been an advisory editor of the journal Combinatorica. In all his life, Hajnal has been an avid chess player.〔(The announcement ) for the 2001 conference in honor of Hajnal and Sós calls him “the great chess player”; the conference included a blitz chess tournament in his honor.〕 Hajnal is the father of Peter Hajnal, the co-dean of the European College of Liberal Arts. 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「András Hajnal」の詳細全文を読む スポンサード リンク
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