George William Hill

George William Hill
George William Hill
	George William Hill
Born	March 3, 1838; New York City, U.S.
Died	April 16, 1914 (aged 76); West Nyack, New York, U.S.
Nationality	American
Alma mater	Rutgers University
Known for	Hill differential equation; Hill sphere; Lunar theory;
Awards	Gold Medal of the Royal Astronomical Society (1887); Damoiseau Prize of the Institut de France (1898); Copley Medal (1909); Bruce Medal (1909);
	Scientific career
Fields	Astronomy, mathematics
Institutions	Columbia University, United States Naval Observatory
Academic advisors	Theodore Strong
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George William Hill (March 3, 1838 – April 16, 1914) was an American astronomer and mathematician. Working independently and largely in isolation from the wider scientific community, he made major contributions to celestial mechanics and to the theory of ordinary differential equations. The importance of his work was explicitly acknowledged by Henri Poincaré in 1905. In 1909 Hill was awarded the Royal Society's Copley Medal, "on the ground of his researches in mathematical astronomy". Hill is remembered for the Hill differential equation, along with the Hill sphere.

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