Il ruolo di Luigi Cremona nella prima formazione scientifica di Eugenio Beltrami attraverso la loro corrispondenza

In October 1862 Beltrami was appointed, before graduating, as a professor at the University of Bologna, and here he met again his friend and colleague Cremona. The correspondence between the two mathematicians clearly shows not only the intimate friendship between them, but also Cremona’s role as Beltrami’s mentor in those years. The former is indeed generous with advice, encouragement and recommendations to his friend