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Kantorovich, Leonid Vitalyevich

(Encyclopedia)Kantorovich, Leonid Vitalyevich lēˈənĭd vītalˈēyavĭch kəntorˈəvĭch [key], 1912–86, Soviet economist and mathematician, b. St. Petersburg, Russia. A professor at Leningrad State Univ. (19...

Brahmagupta

(Encyclopedia)Brahmagupta bräˌməgo͝opˈtə [key], c.598–c.660, Indian mathematician and astronomer. He was among the first to meaningfully discuss the concepts of zero and of negative numbers. He wrote in ver...

artificial intelligence

(Encyclopedia)artificial intelligence (AI), the use of computers to model the behavioral aspects of human reasoning and learning. Research in AI is concentrated in some half-dozen areas. In problem solving, one mus...

Church, Sir Richard

(Encyclopedia)Church, Sir Richard, 1784–1873, British army officer. After varied service, he organized a Greek regiment to defend (1812–15) the Ionian Islands, and in 1827 he was made generalissimo of the Greek...

Lascaris, Constantine

(Encyclopedia)Lascaris, Constantine kŏnˈstəntēn lăsˈkərĭs [key], d. 1501?, Greek grammarian. After the fall of Constantinople, Lascaris went to Italy and in Milan obtained the patronage of Francesco Sforza....

Seferis, George

(Encyclopedia)Seferis, George sĕfĕrˈēs [key] (Giorgos Sefiriades), 1900–1971, Greek poet. Educated at the Univ. of Paris, he returned to Greece, where he had a distinguished career as a diplomat, including se...

Papagos, Alexander

(Encyclopedia)Papagos, Alexander päˈpägôs [key], 1883–1955, Greek soldier and political leader. Commissioned an officer in the Greek army in 1906, he rose rapidly through the ranks. In 1935 he became minister...

Aumann, Robert John

(Encyclopedia)Aumann, Robert John, American-Israeli mathematician, b. Frankfurt, Germany, Ph.D. Massachusetts Institute of Technology, 1955. He immigrated with his family to the United States in 1938, and moved to ...

Delambre, Jean Baptiste Joseph

(Encyclopedia)Delambre, Jean Baptiste Joseph zhäN bätēstˈ zhôzĕfˈ dəläNˈbrə [key], 1749–1822, French astronomer and mathematician. He was a member of the bureau of longitudes from 1795 and professor at...

Sylvester, James Joseph

(Encyclopedia)Sylvester, James Joseph, 1814–97, English mathematician. He studied at Cambridge for four years after 1831, but because degrees were limited to members of the Church of England and he was a Jew, he ...