Mathematician:Percy John Heawood

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Mathematician

English mathematician who devoted his working life to the Four Color Theorem.

In $1890$, exposed a flaw in Alfred Bray Kempe's proof, that had been considered as valid for $11$ years.

He never actually proved the theorem, which remained open until it was finally proved in $1976$ by Kenneth Ira Appel and Wolfgang Haken.


Nationality

English


History

  • Born: 8 September 1861 in Newport, Shropshire, England
  • Died: 24 January 1955 in Durham, Co. Durham, England


Theorems and Definitions

Results named for Percy John Heawood can be found here.


Publications

  • 1890: Map colour theorems
  • 1949: Map colour theorems


Sources