Eugenio Beltrami Scientist

Eugenio Beltrami (November 16, 1835 in Cremona – June 4, 1899 in Rome) was an Italian mathematician notable for his work concerning differential geometry and mathematical physics. His work was noted especially for clarity of exposition. He was the first to prove consistency of non-Euclidean geometry by modeling it on a surface of constant curvature, the pseudosphere, and in the interior of an n-dimensional unit sphere, the so-called Beltrami–Klein model. He also developed singular value decomposition for matrices, which has been subsequently rediscovered several times. Beltrami's use of differential calculus for problems of mathematical physics indirectly influenced development of tensor calculus by Gregorio Ricci-Curbastro and Tullio Levi-Civita.

Personal facts

Birth date	November 16, 1835
Birth place	Lombardy , Austrian Empire , Cremona
Nationality	Italy
Date of death	February 18, 1900
Place of death	Italy , Rome , Kingdom of Italy
Residence	Italy
Education	University of Pavia
Known for	Laplace–Beltrami operator