Pelageya Yakovlevna Polubarinova-Kochina was a Soviet and Russian applied mathematician, known for her work on fluid mechanics and hydrodynamics, particularly, the application of Fuchsian equations, as well in the history of mathematics. Wikipedia
Born: May 13, 1899, Khutor, Russia
Died: July 3, 1999 (age 100 years), Moscow, Russia
Partner: Nikolai Kochin