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arXiv 0907.2060math.NT
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小有限域上低亏格的非退化曲线

Nondegenerate curves of low genus over small finite fields

Wouter Castryck, John Voight

摘要:

在以前的论文中,我们证明了在一个有限域$k$的足够大的基数,所有曲线的亏格最多为3的k可以模拟的二元劳伦多项式是非退化的关于它的牛顿多面体。本文证明了有限域上亏格至多为3的非退化曲线有两条,一条在F_2上,一条在F_3上。这两条曲线都具有关于各种扩域上有理点个数的显着极值性质。

英文摘要:

In a previous paper, we proved that over a finite field $k$ of sufficiently large cardinality, all curves of genus at most 3 over k can be modeled by a bivariate Laurent polynomial that is nondegenerate with respect to its Newton polytope. In this paper, we prove that there are exactly two curves of genus at most 3 over a finite field that are not nondegenerate, one over F_2 and one over F_3. Both of these curves have remarkable extremal properties concerning the number of rational points over various extension fields.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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