Eugenio Beltrami, Date of Birth, Place of Birth, Date of Death

Eugenio Beltrami

Italian mathematician

Date of Birth: 16-Nov-1835

Place of Birth: Cremona, Lombardy, Italy

Date of Death: 18-Feb-1900

Profession: politician, mathematician, president, university teacher, senator

Zodiac Sign: Scorpio

Eugenio Beltrami (16 November 1835 – 18 February 1900) 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.