简介：【 1 】EugenIoBeltramL(November 16, 1835 - June 4, 1899 ) Ltalian mathematician, Professor of the University of Pisa (1863), Professor of the University Of Bologna (1866), Professor of the University Of Rome (1873), Professor Of The University Of ParvIX (1876) . Bertrami studied non Euclidean geometry, developed hyperspace geometry, and contributed to the development of elasticity . 【 2 】Chinese Name BertramL Foreign Name Eugenio Beltrami Nationality Ltaly Date of birth November 16, 1835 Date of death June 4, 1899, February 18, 1900