Wolfgang Haken

Wolfgang Haken
Haken in 2008
Born	(1928-06-21)June 21, 1928 Berlin, Germany
Died	October 2, 2022(2022-10-02) (aged 94) Champaign, Illinois
Alma mater	Kiel University
Known for	Solving the four-color theorem
Scientific career
Fields	Mathematics
Institutions	University of Illinois Urbana-Champaign
Doctoral advisor	Karl-Heinrich Weise

Wolfgang Haken (German: [ˈvɔlfɡaŋ ˈhaːkn̩]; June 21, 1928 – October 2, 2022) was a German American mathematician who specialized in topology, in particular 3-manifolds.