Cecilia Krieger

Cypra Cecilia Krieger-Dunaij (9 April 1894 – 17 August 1974) was an Austro-Hungarian (more specifically, Galician)-born mathematician of Jewish ancestry who lived and worked in Canada. Krieger was the third person (and first woman) to earn a Ph.D in mathematics from a university in Canada, in 1930 as well as the third woman to have been awarded a doctorate in any discipline in Canada. Krieger is well known for having translated two works of Wacław Sierpiński in general topology. The Krieger–Nelson Prize, awarded annually by the Canadian Mathematical Society since 1995 for outstanding research by a female mathematician, is named in honour of Krieger and Evelyn Nelson.

Krieger was born on 9 April 1894 in Jasło in Galicia. The town was then part of Austria-Hungary, but is in modern-day Poland. Her parents, Moses and Sarah Krieger, had two sons and two daughters besides Cecilia. Krieger began studying mathematics and physics at the University of Vienna in 1919, but moved with her family to Toronto, Ontario, Canada in 1920. Krieger earned a B.A in 1924 and a M.A in 1925 from the University of Toronto. She obtained her Ph.D from the same university in 1930. Her thesis, under the supervision of W.J. Webber, was entitled "On the summability of trigonometric series with localized parameters—on Fourier constants and convergence factors of double Fourier series".

...
Wikipedia