Carl Einar Hille was an American mathematics professor and scholar. Hille authored or coauthored twelve mathematical books and a number of mathematical papers.
MFO 1971
Einar Hille (top right with glasses), standing right behind Ms. Edla Hille (with headscarf), at the ICM 1932
American Mathematical Society
The American Mathematical Society (AMS) is an association of professional mathematicians dedicated to the interests of mathematical research and scholarship, and serves the national and international community through its publications, meetings, advocacy and other programs.
American Mathematical Society