Italian mathematician whose work on non-Euclidean geometries (i.e., geometries that are not based on figures on flat surfaces) was used by Albert Einstein in his general relativity theory. Bianchi's major work involved the theory of surfaces and differential geometry, a topic upon which he wrote several influential papers. In addition to his work in geometry, he also made fundamental contributions to the theory of groups and theories of complex variables.
"Luigi Bianchi." Science and Its Times: Understanding the Social Significance of Scientific Discovery. . Encyclopedia.com. (January 23, 2019). https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/luigi-bianchi
"Luigi Bianchi." Science and Its Times: Understanding the Social Significance of Scientific Discovery. . Retrieved January 23, 2019 from Encyclopedia.com: https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/luigi-bianchi