Tatyana Ehrenfest

Tatyana Pavlovna Ehrenfest, later van Aardenne-Ehrenfest, (Vienna, October 28, 1905 – Dordrecht, November 29, 1984) was a Dutch mathematician.

Tatyana Ehrenfest was born in Vienna and spent her childhood in St Petersburg.

Until 1917 she was home schooled; after that, she attended the Gymnasium in Leiden and passed the final exams in 1922.

They are named after Nicolaas Govert de Bruijn, despite their earlier discovery (for binary alphabets) by Camille Flye Sainte-Marie.

[4] Ehrenfest is also known for her proof of a lower bound on low-discrepancy sequences.