摘要翻译:
在$P$-adic局部域$K$上,使基本群$\PI_1(X/K)$允许分裂的曲线$X/K$的周期和指数是$P$的幂。因此,构造了数域上的曲线的例子,其中在$P$-adic的地方有部分被局部阻塞。因此,对于这些曲线,截面猜想成立,因为既不存在截面,也不存在有理点。
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英文标题:
《On the period-index problem in light of the section conjecture》
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作者:
Jakob Stix
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最新提交年份:
2008
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分类信息:
一级分类:Mathematics 数学
二级分类:Algebraic Geometry 代数几何
分类描述:Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology
代数簇,叠,束,格式,模空间,复几何,量子上同调
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一级分类:Mathematics 数学
二级分类:Number Theory 数论
分类描述:Prime numbers, diophantine equations, analytic number theory, algebraic number theory, arithmetic geometry, Galois theory
素数,丢番图方程,解析数论,代数数论,算术几何,伽罗瓦理论
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英文摘要:
Period and index of a curve $X/K$ over a $p$-adic local field $K$ such that the fundamental group $\pi_1(X/K)$ admits a splitting are shown to be powers of $p$. As a consequence, examples of curves over number fields are constructed where having sections is obstructed locally at a $p$-adic place. Hence the section conjecture holds for these curves as there are neither sections nor rational points.
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PDF链接:
https://arxiv.org/pdf/0802.4125


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