Celebratio Mathematica

Wolfgang Haken

⇧

Photos

prev next

Photo courtesy of the University of Illinois Department of Mathematics.

Kenneth Appel and Wolfgang Haken working together in the early 70s.

Life
Works
History
Four Colors
Students
Gallery
- Credits
- Cover

volume supported by

University of Illinois

Celebratio Mathematica is an open-access publication of Mathematical Sciences Publishers.

Design & Software © 2012–2025 MSP. All rights reserved.

Website powered by ProCelebratio 0.5 from MSP.