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Djairo Guedes de Figueiredo (academic signature: ''D. G. De Figueiredo'', born in 1934) is a Brazilian mathematician noted for his researches on differential equations, elliptic operators, and calculus of variations.〔http://www.abc.org.br/~djairo〕 He is considered the greatest analyst from Brazil.〔Clóvis Pereira da Silva, ''Aspectos históricos do desenvolvimento da pesquisa matemática no Brasil'', page 39, (Google books quick-link )〕 He was the president of the Brazilian Mathematical Society from 1977 to 1979.〔http://www.sbm.org.br/institucional/quem-somos/memória/diretorias〕 Figueiredo is a well known figure among Brazilian students in physics, engineering and mathematics, and has received many Brazilian national prizes, mostly for his popular mathematics textbooks (about analysis and differential equations) and expository writing papers, but also for his research in pure mathematics. He was a Ph.D. student of Louis Nirenberg at New York University,〔http://www.genealogy.math.ndsu.nodak.edu/id.php?id=33509〕 and is currently a titular professor at UNICAMP, a position he earned in 1989. ==Selected papers== *D. G. de Figueiredo, P. L. Lions, R. D. Nussbaum . "A priori estimates and existence of positive solutions of semilinear elliptic equations", ''Journal de Mathématiques Pures et Appliquées'', 61, 1982, pp. 41–63. *D. G. de Figueiredo, P. L. Felmer . "On superquadratic elliptic systems", ''Transactions of the American Mathematical Society'', v. 343, n. 1, 1994, pp. 99–116. *P. Clément, D. G. de Figueiredo . "Positive solutions of semilinear elliptic systems", ''Communications in Partial Differential Equations'', v. 17, n. 5–6., 1992, pp. 923–940. 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「Djairo Guedes de Figueiredo」の詳細全文を読む スポンサード リンク
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