The theta-kernel weight divisibility conjecture

Let pp be a prime, let nn, jj, and kk be positive integers with j<nj<n, and let FMk(Γ1(n)(N))Z(p)F\in M_k(\Gamma^{(n)}_{1}(N))_{\mathbb{Z}_{(p)}} with kZ1k\in\mathbb{Z}_{\ge 1}. Assume that Θ[j+1](F)0(modp)\Theta^{[j+1]}(F)\equiv 0\pmod p and Θ[j](F)≢0(modp)\Theta^{[j]}(F)\not\equiv 0\pmod p. Suppose that kk is sufficiently small compared with pp. Theta-kernel weight divisibility conjecture. Then

p(2ωN(F)j).p\mid\bigl(2\omega_N(F)-j\bigr).

The preceding theorem establishes this divisibility only under explicit bounds and additional hypotheses; the stated general prediction concerns the broader regime in which the weight is sufficiently small relative to pp.

Sources & referencesView supporting material

Primary source

Siegfried Boecherer, Toshiyuki Kikuta and Sho Takemori, “Weights of the mod p kernel of the theta operators”, arXiv:1606.06390 (2016).

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