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. 
Toshiyuki Kikuta, Hirotaka Kodama, Shoyu Nagaoka
math.NT