Édouard Goursat

lived from 1858 to 1936

Édouard Goursat was a French mathematician who is best known for his version of the Cauchy-Goursat theorem stating that the integral of a function round a simple closed contour is zero if the function is analytic inside the contour.

Find out more at:
http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Goursat.html