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arxiv: 1712.02775 · v2 · pith:BTJWH5SSnew · submitted 2017-12-07 · 🧮 math.NT

The Sato-Tate conjecture and Nagao's conjecture

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keywords conjecturenagaocurvesellipticsato-tatearisingaveragecertain
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Nagao's conjecture relates the rank of an elliptic surface to a limit formula arising from a weighted average of fibral Frobenius traces, and it is further generalized for smooth irreducible projective surfaces by M. Hindry and A. Pacheco. We show that the Sato-Tate conjecture based on the random matrix model implies Nagao's conjecture for certain twist families of elliptic curves and hyperelliptic curves.

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  1. Rank and Bias in Families of Hyperelliptic Curves via Nagao's Conjecture

    math.NT 2019-06 unverdicted novelty 6.0

    Generalizes Nagao conjecture to hyperelliptic curves, computes moments to obtain Jacobian rank 4g+2 over Q(T), and proves second-moment bias for some families.