On the kernel of the theta operator mod p
We construct many examples of level one Siegel modular forms in the kernel of theta operators mod $p$ by using theta series attached to positive definite quadratic forms.
math.NT↗
arXiv subjects
Hirotaka Kodama
Publications and source records attributed to Hirotaka Kodama.
Note on Igusa's cusp form of weight 35
A congruence relation satisfied by Igusa's cusp form of weight 35 is presented. As a tool to confirm the congruence relation, a Sturm-type theorem for the case of odd-weight Siegel modular forms of degree 2 is included.
math.NT↗