The balanced heavenly elliptic curve conjecture

Let \ell be a prime, let KK be a quadratic number field, and let E/KE/K be an elliptic curve. An elliptic curve is heavenly at \ell when its \ell-power torsion field satisfies the heavenly condition defined in the paper, and it is balanced when its \ell-torsion has the balanced group-scheme structure defined there. Balanced heavenly elliptic curve conjecture. If E/KE/K is heavenly at \ell and balanced, then EE has complex multiplication. The conjecture would imply finiteness of the relevant set of heavenly elliptic curves over quadratic fields, in view of the known uniform bound in the complex-multiplication case. Its status is not resolved in the supplied text.

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Primary source

Cam McLeman and Christopher Rasmussen, “Heavenly elliptic curves over quadratic fields”, arXiv:2410.18389 (2026).

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