Equidistribution conjecture for anomalous shadow lines in the receptacle

Let E/QE/\mathbf{Q} be an elliptic curve of analytic rank 22, let pp be an odd prime of good ordinary anomalous reduction, and let KK be an imaginary quadratic field satisfying the Heegner hypothesis for EE, such that the analytic rank of the twisted curve EK/QE^K/\mathbf{Q} is 11 and pp splits in KK. Let HH be the receptacle, with HE(Q)ZpH\subseteq E(\mathbf{Q})\otimes \mathbf{Z}_p, and let LKL'_K be the shadow line and S\mathcal{S} the distinguished shadow line. Filtered equidistribution conjecture. If EE does not have a rational pp-isogeny, then the shadow lines LKL'_K that coincide with S\mathcal{S} in HFpH\otimes \mathbb{F}_p are equidistributed in HH. The claim refines the preceding anomalous-reduction distribution question by conditioning on the distinguished mod-pp shadow line; the supplied text gives no resolution, so the status remains open.

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Primary source

Jennifer S. Balakrishnan, Mirela Çiperiani, Barry Mazur and Karl Rubin, “Shadow line distributions”, arXiv:2409.00891 (2025).

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