Eugenio Beltrami
…of differential calculus for problems of mathematical physics indirectly influenced the development of tensor calculus by Gregorio Ricci-Curbastro and Tullio Levi-Civita. Beltrami was born in 1835 in Cremona (Lombardy), then a part of the Austrian Empire, and now part of Italy. Both parents were artists, Giovanni Beltrami…