Notices of the International Consortium of Chinese Mathematicians

Volume 11 (2023)

Number 1

On Eisenstein congruences and beyond

Pages: 160 – 183



Emmanuel Lecouturier (Yau Mathematical Sciences Center, Tsinghua University, Beijing, China)


Eisenstein congruences play an important role in modern number theory. We survey some topics related to these congruences, starting from the example of Ramanujan’s Delta function modulo 691. This paper does not contain any new results, except Theorem 2.4.

Published 11 July 2023