Harder's conjecture II

Hiraku Atobe, Masataka Chida, Tomoyoshi Ibukiyama +2

Let $f$ be a primitive form of weight $2k+j-2$ for $S{L}_2(Z)$, and let $P$ be a prime ideal of the Hecke field of $f$. We denote by $S{p}_m(Z)$ the Siegel modular group of degree $m$.…