Levi-Civita, Tullio(to͞ol`lyō lā`vē-chē`vētä), 1873–1942, Italian mathematician. He taught at the universities of Padua (1898–1919) and Rome (1919–38) and was noted for his researches in pure geometry, hydrodynamics, celestial mechanics, and tensor analysis (see tensortensor,
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 coordinate axes are rotated (see Cartesian coordinates).
..... Click the link for more information. ), on which Einstein's work depended in part. He wrote Simplified Presentation of Einstein's Unified Field Equations (authorized tr. 1929).
Born Mar. 29, 1873, in Padua; died Dec. 29, 1941, in Rome. Italian mathematician and specialist in mechanics.
Levi-Civita was a professor at universities in Padua (1898–1918) and Rome (1918–38). He systematized tensor analysis in 1901 together with the Italian mathematician G. Ricci-Curbastro. Levi-Civita was the first to pose and solve the problem of “regularizing” the limited three-body problem. He was the author of a number of works on celestial mechanics, hydrodynamics, and the theory of differential equations. He substantiated mathematically the theory of adiabatic invariants introduced by A. Einstein.