2 papers
math.NT2014
On theta series attached to the Leech lattice
Shoyu Nagaoka, Sho Takemori
Some congruence relations satisfied by the theta series associated with the Leech lattice are given.
math.NT2012
Ramanujan type congruences for modular forms of several variables
Toshiyuki Kikuta, Shoyu Nagaoka
We give congruences between the Eisenstein series and a cusp form in the cases of Siegel modular forms and Hermitian modular forms. We should emphasize that there is a relation bet…