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Lie, Marius Sophus

(Encyclopedia)Lie, Marius Sophus mäˈrēo͝os sōˈfo͝os lē [key], 1842–99, Norwegian mathematician. He is noted for his contributions to the theories of differential equations and continuous transformation gr...

Darley, George

(Encyclopedia)Darley, George, 1795–1846, English author and mathematician, b. Ireland. Included among his works are the pastoral drama Sylvia (1827), the poem Nepenthe (1835), a precursor of 20th-century symbolis...

Cavalieri, Francesco Bonaventura

(Encyclopedia)Cavalieri, Francesco Bonaventura fränchāsˈkō bōnävānto͞oˈrä kävälyāˈrē [key], 1598–1647, Italian mathematician, a Jesuit priest. Professor at Bologna from 1629, he invented the method...

Miller, George Abram

(Encyclopedia)Miller, George Abram, 1863–1951, American mathematician, b. Lehigh co., Pa., grad. Muhlenberg College (B.A., 1887), Ph.D. Cumberland Univ., 1893. He was professor at the Univ. of Illinois (1907–31...

Aryabhata

(Encyclopedia)Aryabhata ärˌyəbhŭtˈə [key], c.476–550, Hindu mathematician and astronomer. He is one of the first known to have used algebra; his writings include rules of arithmetic and of plane and spheric...

Germain, Sophie

(Encyclopedia)Germain, Sophie sôfēˈ zhĕrmăNˈ [key], 1776–1831, French mathematician. Although self-taught, she mastered mathematics and corresponded with J. L. Lagrange and C. F. Gauss. She is known especia...

Smith, Henry John Stephen

(Encyclopedia)Smith, Henry John Stephen, 1826–83, British mathematician. He was a lecturer in mathematics (1850–73) and, from 1860 to 1883, Savilian professor of geometry at Oxford. He is especially noted for h...

Perelman, Grigori Yakovlevich

(Encyclopedia)Perelman, Grigori Yakovlevich, 1966–, Russian mathematician. After doing graduate work in the late 1980s for his Candidate of Science degree from Leningrad State Univ. (now St. Petersburg State Univ...

Darwin, Sir George Howard

(Encyclopedia)Darwin, Sir George Howard, 1845–1912, English astronomer and mathematician; 2d son of Charles Darwin. He was Plumian professor (from 1883) of astronomy and experimental philosophy at Cambridge, and ...

Dickson, Leonard Eugene

(Encyclopedia)Dickson, Leonard Eugene, 1874–1954, American mathematician, b. Independence, Iowa, grad. Univ. of Texas, 1893. He studied in Leipzig and Paris and joined the staff of the Univ. of Chicago in 1900. A...