Conjecture A on congruence primes of Duke-Imamoglu-Ikeda lifts
Let ggg be a Hecke eigenform belonging to the Kohnen plus subspace Sk−n/2+1/2+(Γ0(4))\mathfrak{S}_{k-n/2+1/2}^+(\Gamma_0(4))Sk−n/2+1/2+(Γ0(4)), and let fff be the primitive form in…