Gregorio Ricci-Curbastro

Gregorio Ricci-Curbastro was an Italian mathematician, born in Lugo di Romagna in 1853, who studied at Rome, Bologna and the Scuola Normale Superiore in Pisa, with teachers including Enrico Betti, Eugenio Beltrami and Felix Klein. From 1880 he was a lecturer at the University of Padua, where he worked on Riemannian geometry and developed the absolute differential calculus, now called tensor calculus, and led a research group around it. With his former student Tullio Levi-Civita he wrote his most famous publication, a pioneering work on the calculus of tensors. He also published on higher algebra and on real numbers.