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Alexandru Ghika (June 22, 1902 – April 11, 1964) was a Romanian mathematician, founder of the Romanian school of functional analysis. ==Life== He was born in Bucharest, into the Ghica family, the son of Ioan Ghika (1873–1949) and Elena Metaxa (1870–1951), and great-great-grandson of Grigore IV Ghica, Prince of Wallachia.〔(Family tree ), at ghika.org〕 He started his secondary studies at the Gheorghe Lazăr High School in Bucharest. In 1917, he left with his family for Paris, completing his secondary studies at the Lycée Louis-le-Grand in 1920. He then entered the University of Paris (the Sorbonne) with a major in mathematics, graduating in 1922. In 1929, he obtained a Ph.D. in mathematics from the Faculté des Sciences of the University of Paris. After completing his doctorate, Ghika returned to Romania. In November 1932 he became Assistant Professor in the Mathematics Department of the University of Bucharest, working in the Function Theory section chaired by Dimitrie Pompeiu. On February 7, 1935, he was promoted to Associate Professor, and in 1945 he was named Full Professor and chair of the newly founded Functional Analysis section. In 1935, Ghika was elected corresponding member of the Romania Academy of Sciences, being promoted to full member in 1938. In 1955 he became corresponding member of the Romanian Academy, and was promoted to full membership on March 20, 1963. In 1949, at the founding of the Institute of Mathematics of the Romanian Academy, he became the chair of the Functional Analysis section of that Institute, a position he held till his death. Ghika married Elisabeta Angelescu (daughter of one-time Prime Minister Constantin Angelescu) on June 7, 1934. They had a son, Grigore (born November 7, 1936), who became a researcher at the Institute of Atomic Physics in Măgurele.〔 Alexandru Ghika died in Bucharest of lung cancer. He was buried at the Ghika-Tei church, founded in 1833 by Prince Grigore Alexandru Ghica.〔(In memoriam - Grigore Alexandru Ghica ), at Cronica Româna〕 In March, 2007, the heirs of the Ghika and Angelescu families won back their rights to Hotel Lido, in Bucharest.〔("Fraţii Pǎunescu au pierdut Hotelul Lido" ), ''Evenimentul Zilei'', March 9, 2007.〕 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「Alexandru Ghika」の詳細全文を読む スポンサード リンク
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