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arXiv 2007.11425math.NT
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$X^{3}+NY^{3}$形式的素数和一族违反局部-整体原理的非奇异平面曲线

Primes of the form $X^{3}+NY^{3}$ and a family of non-singular plane curves which violate the local-global principle

Yoshinosuke Hirakawa

摘要:

令$n$为整数,使得$n = 5$或$n \geq 7$。在这篇文章中,我们介绍了一个配方的非奇异平面曲线的次数$n$,违反局部-整体原则的某些无限家庭。此外,每个家庭包含无限多个成员,这些成员彼此不同构。我们的结构是基于两个算术对象,即,素数的形式$X^{3}+NY^{3}$由于希斯-布朗和莫罗兹和费马型方程的形式$x^{3}+Ny^{3} = Lz^{n}$,其中$N$和$L$是适当选择的整数。在这个意义上,我们的结构是由Shimizu和作者发现的奇次$n$族的推广。只有当给定的次数$n$有一个素因子满足Ankeny-Artin-Chowla-Mordell型不可分性猜想时,上述构造才成立.在这段时间里,我们专注于互补的情况下,即偶数度和例外奇数度的情况。因此,我们的食谱整体上运作良好。这意味着我们可以无条件地得到无限多个非奇异的平面曲线的每一次$n = 5$或$n \geq 7$违反局部-整体原则。这给出了搜索违反局部-整体原则的显式三元形式的经典故事的结论,该故事由Selmer(1951)发起并由Fujiwara(1972)等人扩展。

英文摘要:

Let $n$ be an integer such that $n = 5$ or $n \geq 7$. In this article, we introduce a recipe for a certain infinite family of non-singular plane curves of degree $n$ which violate the local-global principle. Moreover, each family contains infinitely many members which are not geometrically isomorphic to each other. Our construction is based on two arithmetic objects; that is, prime numbers of the form $X^{3}+NY^{3}$ due to Heath-Brown and Moroz and the Fermat type equation of the form $x^{3}+Ny^{3} = Lz^{n}$, where $N$ and $L$ are suitably chosen integers. In this sense, our construction is an extension of the family of odd degree $n$ which was previously found by Shimizu and the author. The previous construction works only if the given degree $n$ has a prime divisor which satisfies a certain indivisibility conjecture of Ankeny-Artin-Chowla-Mordell type. In this time, we focus on the complementary cases, namely the cases of even degrees and exceptional odd degrees. Consequently, our recipe works well as a whole. This means that we can unconditionally obtain infinitely many non-singular plane curves of every degree $n = 5$ or $n \geq 7$ which violate the local-global principle. This gives a conclusion of the classical story of searching explicit ternary forms violating the local-global principle, which was originated by Selmer (1951) and extended by Fujiwara (1972) and others.

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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