My work on permutation groups and the theory of equations added clarity to the theories of the eminent mathematician Évariste Galois.
My eponym states that any closed curve that does not cross itself will divide the plane into exactly two regionsan inside and an outside.
I was a mathematics professor at the École Polytechnique in Paris for 36 years, from 1876 to 1912.
I was born in born January 5, 1838, in Lyon, France and died January 20, 1922, in Milan, Italy.
I solved Abel's problem of determining the solvability of any given algebraic equation by radicals.
Answer:
Camille Jordan (18381922)
