Sofya Vasilyevna Kovalevskaya (Russian: Софья Васильевна Ковалевская), born Korvin-Krukovskaya (15 January [O.S. 3 January] 1850 – 10 February 1891), was a Russian mathematician who made noteworthy contributions to analysis, partial differential equations and mechanics. She was a pioneer for women in mathematics around the world – the first woman to earn a doctorate (in the modern sense) in mathematics, the first woman appointed to a full professorship in northern Europe and one of the first women to work for a scientific journal as an editor.
https://en.wikipedia.org/wiki/Sofya_Kovalevskaya