Ke graduated from
Tsinghua University in 1933 and obtained his doctorate from the
University of Manchester under
Louis Mordell in 1937. His main fields of study were
algebra,
number theory and
combinatorics. Some of his major contributions included his work on
quadratic forms, the
Erdős–Ko–Rado theorem and his theorem on
Catalan's conjecture. He was later a professor at
Sichuan University and became the president of the university and of the
Chinese Mathematical Society. ==References==