Dmitri Egorov

Dmitri Fyodorovich Egorov (1869 to 1931) was a Russian mathematician who worked in differential geometry and mathematical analysis. Born in Moscow into a family of teachers, he studied at Moscow University under the influence of Nikolai Bugaev, graduated in 1891 and later earned his master's degree and his doctorate there. After study trips to Berlin, Paris and Gottingen he became a professor at Moscow University in 1904. His doctoral dissertation on orthogonal systems and curvilinear coordinates made a major contribution to differential geometry, and he did important work on triply orthogonal systems and potential surfaces. He is also remembered as a teacher: with his student Nikolai Luzin he built the research group that became known as Luzitania, which trained much of the next generation of Moscow mathematicians.