# Computing Hasse–Witt matrices of hyperelliptic curves in average polynomial time, II

(with Andrew Sutherland)

Contemporary Mathematics **663** (2016), “Frobenius distributions: Lang–Trotter and Sato–Tate conjectures”, 127–147, AMS (DOI).

arXiv preprint (October 2014).

## Abstract

We present an algorithm that computes the Hasse–Witt matrix of a given hyperelliptic curve over **Q** at all primes of good reduction up to a given bound *N*. It is simpler and faster than the previous algorithm developed by the authors.

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