Charles Ehresmann
French mathematician
>
Charles Ehresmann was a German-born French mathematician who worked in differential topology and category theory. Wikipedia
Born: April 19, 1905, Strasbourg, France
Died: September 22, 1979 (age 74 years), Amiens, France
Partner: Andrée Ehresmann
Thesis: Sur la topologie de certains espaces homogènes (1934)