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): Aloísio (footballer, born 1974) • André Randall • Caroline Lucas • Clancy Eccles • Clarence Birdseye • Donny Osmond • Edwin Sandys (1561–1629) • Emma Abbott • Emmett Kelly • Fiona MacDonald • Gregorios Xenopoulos • Jean de Brunhoff • Jean-Claude Juncker • Jim Turnesa • Joanna Trollope • Mark Riddell • Raphaël Rouquier • Redd Foxx • Reiko Aylesworth • Ross Harrington • Roy Rubin (basketball) • Saima Wazed • Stephen McPhail • Tamilla Abassova
Born in the same month (December 1883): Belle da Costa Greene • Cyrus S. Eaton • Edgard Varèse • Giovanni Messe • Hana Meisel • Joseph Pilates • Lester Patrick • Marcus Hurley • Maurice Utrillo • Max Linder • Stefan Jaracz