Karol Borsuk

Karol Borsuk
Born	(1905-05-08)8 May 1905 Warsaw, Congress Poland, Russian Empire
Died	24 January 1982(1982-01-24) (aged 76) Warsaw, Poland
Nationality	Polish
Alma mater	Warsaw University
Known for	Borsuk's conjecture Borsuk–Ulam theorem Bing–Borsuk conjecture Absolute retract Absolute neighborhood retract Shape theory
Scientific career
Fields	Mathematics
Doctoral advisor	Stefan Mazurkiewicz
Notable students	Samuel Eilenberg Jan Jaworowski Krystyna Kuperberg Włodzimierz Kuperberg Andrzej Trybulec Krzysztof Edward Haman

Karol Borsuk (8 May 1905 – 24 January 1982) was a Polish mathematician. His main area of interest was topology. He made significant contributions to shape theory, a term which he coined. He also obtained important results in functional analysis. He was a professor of mathematics at the University of Warsaw, a member of the Polish Academy of Sciences, the Polish Mathematical Society and a leading representative of the Warsaw School of Mathematics.