Ehresmann

Charles Ehresmann

Born: 19 April 1905 in Strasbourg, France
Died: 22 Sept 1979 in Amiens France

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Ehresmann undertook research in Göttingen, Princeton and Paris. His doctorate from Paris was in 1930. He became a lecturer in Strasbourg in 1939. He was one of the creators of differential topology.

Ehresmann participated in the creation and development of fiber spaces, first studied in a special case by Seifert and Whitney. He became a leader in category theory after 1957 and worked in this area for 20 years.

References:

  1. Dictionary of Scientific Biography
  2. A C Ehresmann, Charles Ehresmann, Oeuvres complète et commentées (Amiens, 1982-84). 
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JOC/EFR February 1996