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OP-11918Status unassessedNumber theory

Elliptic-curve Frobenius traces as primitive roots

Elliptic-curve Frobenius traces as primitive roots. Current research status is unassessed. The dated source poses this question; inclusion does not certify that it remains open today.

Editorial MSC2020 mapping of Elliptic-curve Frobenius traces as primitive roots. https://ems.press/content/serial-article-files/52435#page=58 Not an author-supplied code.

Source question · editorial summaryAs of 2025; current status unassessedSource & evidence ↓

Problem statement

For an elliptic curve E/QE/\mathbb Q, set ap=p+1−#E(Fp)a_p=p+1-\#E(\mathbb F_p) at primes of good reduction. Are there infinitely many such primes for which apa_p is a primitive root modulo pp?

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Editorial question summary. Consult the linked source for the complete model, assumptions and discussion.

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Current research status is unassessed. The dated source poses this question; inclusion does not certify that it remains open today.

References
  1. [1]Problem-session contributors; compiled by Thomas F. Bloom. Oberwolfach 2025 — Analytic Number Theory Problem Session (2025).; Elliptic-curve Frobenius traces as primitive roots linkCC BY-SA 4.0; source contributors, compiled by Thomas F. Bloom. These attributed adaptations are available under the same license.

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