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Romanian professor
"Mathematics appears - wrote the famous Romanian mathematician Octav Onicescu – in the exposure of Gh. Ţiţeica, simple and linear, as seemed to be the teacher himself. But this simplicity hided an entire work of personal systematization, as man's simplicity may mask personality with many internal resources". There are some scientists who have a slow evolution, revealing his talent relatively late, during college. Conversely, others are proving to be outstanding personalities early. One such case was the great mathematician Gheorghe Ţiţeica, which has been characterized his entire life, with a strong interest in working and living always for mathematics, by diligence and exceptional creativity.
Gheorghe Ţiţeica was born in Turnu Severin, the son of Radu Titeica, a boat mechanic, born in Buzau County. He attended primary school in Turnu Severin and high school in Craiova where his mathematics professor was GP Constantinescu, father of scientist Gogu Constantinescu, sonic creator. He was first prize winner in all classes, distinguishing himself especially in mathematics, with his exceptional skills. From fifth class becomes scholarship, enabling him to buy some books of mathematics, besides the program hours. He edited, together with a group of fellow colleges, a school magazine. In 1892, after high school, he entered the first through contest, in Normal High School in Bucharest.
He studied then mathematics at the University the same city, with a lot of brilliant professors: David Emmanuel, Spiru Haret, Constantin Gogu and others. But is particularly impressed by Spiru Haret, about who published later several studies, being his successor at the Academy. He got a degree in only three years, and after a year as high school teacher in the capital, he went to Paris, where attended courses simultaneously of the famous Ecole Normale Supérieure and of Sorbonne. Here, Ţiţeica took again a degree in mathematics, the first in his class, and his doctorate, in 1899, under the supervision of famous Darboux, having known teachers as Poincare, Appel, Goursat, Hadamard, Borel, Tannery. Particularly impressed by the professor Darboux lessons, Ţiţeica was passionately dedicated to geometry, obtaining remarkable results even as student. “Ţiţeica, wrote again Onicescu O., had a geometric mind, because his organic way of thinking mathematical objects was geometric."
Thus, he begun to present scientific notes, which are accepted and published by the Academy of Sciences in Paris and these were later included in his dissertation entitled "About cyclic matching and about triple conjugated systems". Even the evening in which he presented his thesis, Ţiţeica returned in the country, where he resumed an intense activity in mathematics. At the end of that year, he is entrusted with a course in differential and integral calculus at the University of Bucharest, next year, having only 27 years, he became associate professor in the Department of spherical trigonometry and analytic geometry.
He was a pioneer in differential geometry. In science remained " surfaces S Ţiţeica” and the curves and networks that bears his name. He is considered worldwide one of the founders of affine geometry. Great scientist and teacher, Gh. Ţiţeica enriched the geometry with new items to study and founded modern geometric research in Romania.
Ţiţeica, as well as other Romanian scientists, worked intensively for disseminating scientific knowledge through lectures, conferences and publications. In 1905, together with GG Longinescu, established the scientific culture magazine "Nature", also had significant contribution to editing "Mathematical Gazette". In 1913, he was elected a member of the Romanian Academy, becoming subsequently vice president of scientific department of the institution and even its general secretary, continuing always his scientific research work.
He was elected president of geometry section at international congresses of mathematics at Toronto, Zurich and Oslo, corresponding member of Academy of Sciences of Maryland (USA), fellow of Science Society of Liege and of the Societas Seientiarum Varsoviensis etc. Ţiţeica was several times president of the Mathematical Society of Romania, President of the Romanian Association for the advancement and dissemination of science, vice president of the Polytechnic Society in Romania.
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Schreibweisen:
Titeica, Gheorghe
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Lebenslauf
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* 1873
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Turnu Severin
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geboren
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1892
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Bucuresti
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1900
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Bucuresti
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1900
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Paris
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1913
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Bucuresti
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† 1939
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Bucuresti
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gestorben
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