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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...

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...

tensor

(Encyclopedia)tensor, in mathematics, quantity that depends linearly on several vector variables and that varies covariantly with respect to some variables and contravariantly with respect to others when the coordi...

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...

Riemann, Bernhard

(Encyclopedia)Riemann, Bernhard (Georg Friedrich Bernhard Riemann) gāˈôrk frēˈdrĭkh bĕrnˈhärt rēˈmän [key], 1826–66, German mathematician. He studied at the universities of Göttingen and Berlin and w...

Mandelbrot, Benoît B.

(Encyclopedia)Mandelbrot, Benoît B. bənwäˈ mănˈdəlbrōˌ, Fr. mäNdĕlbrôˈ [key], 1924–2010, French-American mathematician, b. Warsaw, Poland, Ph.D. Univ. of Paris, 1952. Largely self-taught and consider...

Tait, Peter Guthrie

(Encyclopedia)Tait, Peter Guthrie, 1831–1901, Scottish physicist and mathematician. He was professor of natural philosophy at Edinburgh from 1860 and conducted important investigations in thermodynamics and the k...

Barrow, Isaac

(Encyclopedia)Barrow, Isaac, 1630–77, English mathematician and theologian. His method of finding tangents prefigured the differential calculus developed by Isaac Newton. He was professor of mathematics at Cambri...

Euclid, Greek mathematician

(Encyclopedia)Euclid yo͞oˈklĭd [key], fl. 300 b.c., Greek mathematician. Little is known of his life other than the fact that he taught at Alexandria, being associated with the school that grew up there in the l...