Algorithmic Number Theory
Algorithmic Number Theory
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算法数论
DOI:
10.1007/978-3-540-79456-1_23
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Galbraith S
中科院分区:
文献类型:
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作者:
Galbraith S
We discuss arithmetic in the Jacobian of a hyperelliptic curveCof genusg. The traditional approach is to fix a pointP∞∈Cand represent divisor classes in the formE−d(P∞) whereEis effective and 0 ≤d≤g. We propose a different representation which is balanced at infinity. The resulting arithmetic is more efficient than previous approaches when there are 2 points at infinity.