Stanisław Ruziewicz, Date of Birth, Place of Birth, Date of Death

Stanisław Ruziewicz

Polish mathematician (1889–1941)

Date of Birth: 29-Aug-1889

Place of Birth: Kolomyia, Ivano-Frankivsk Oblast, Ukraine

Date of Death: 12-Jul-1941

Profession: mathematician, university teacher

Nationality: Poland

Zodiac Sign: Virgo

Stanislaw Ruziewicz (29 August 1889 – 12 July 1941) was a Polish mathematician and one of the founders of the Lwów School of Mathematics. He was a former student of Waclaw Sierpinski, earning his doctorate in 1913 from the University of Lwów; his thesis concerned continuous functions that are not differentiable.
He became a professor at the same university (then named Jan Kazimierz University) and rector of the Academy of Foreign Trade in Lwów.
During the Second World War, Ruziewicz's home city of Lwów was annexed by the Ukrainian Soviet Socialist Republic, but then taken over by the General Government of German-occupied Poland in July 1941; Ruziewicz was arrested and murdered by the Gestapo on 12 July 1941 in Lviv, during the Massacre of Lviv professors.The Ruziewicz problem, asking whether the Lebesgue measure on the sphere may be characterized by certain of its properties, is named after Ruziewicz.