English

Point counting in families of hyperelliptic curves in characteristic 2

Number Theory 2007-05-23 v1 Algebraic Geometry

Abstract

Let E_G be a family of hyperelliptic curves over F2^(alg cl) with general Weierstrass equation given over a very small field F. We describe in this paper an algorithm to compute the zeta function of E_g for g in a degree n extension field of F, which has as time complexity O(n^3) and memory requirements O(n^2). With a slightly different algorithm we can get time O(n^2,667) and memory O(n^2,5), and the computation of O(n) curves of the family can be done in time and space O(n^3). All these algorithms are polynomial in the genus.

Keywords

Cite

@article{arxiv.math/0607346,
  title  = {Point counting in families of hyperelliptic curves in characteristic 2},
  author = {Hendrik Hubrechts},
  journal= {arXiv preprint arXiv:math/0607346},
  year   = {2007}
}

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23 pages