Nikolai Luzin
Nikolai Nikolayevich Luzin was a Soviet and Russian mathematician known for his work in descriptive set theory and aspects of mathematical analysis with strong connections to point-set topology. He was the eponym of Luzitania, a loose group of young Moscow mathematicians of the first half of the 1920s. They adopted his set-theoretic orientation, and went on to apply it in other areas of mathematics.
9 December 1883
Born on the same birth date (9 December 1883): Alexandros Papagos • Joseph Pilates
Born on the same birth day (9 December): Berton Churchill • Bárbara Padilla • Gemma Frisius • Germain Gagnon • Irene Greenwood • Lorenzo Wright • Martin Taylor (footballer, born 1966) • Robert Livingston (actor) • Simone Fontecchio • Steve Taylor
Born in the same month (December 1883): Alexandros Papagos • Archer Baldwin • Cyrus S. Eaton • Edgard Varèse • Hana Meisel • Henry Cadbury • Hugo Bergmann • Joseph Pilates • Katharine Susannah Prichard • Manolis Kalomiris • Marcus Hurley • Maurice Utrillo • Morihei Ueshiba • Stefan Jaracz