Esther Szekeres

Esther Szekeres was a HungarianAustralian mathematician.

Esther Klein was born to Ignaz Klein in a Jewish family in Budapest, Kingdom of Hungary in 1910. As a young woman in Budapest, Klein was a member of a group of Hungarians including Paul Erds, George Szekeres and Pl Turn that convened over interesting mathematical problems.

Source: Wikipedia