Arithmetic Geometry, Number Theory, and Computation

Arithmetic Geometry, Number Theory, and Computation
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算术几何、数论和计算

DOI:
10.1007/978-3-030-80914-0_11
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发表时间:
2021
期刊:
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通讯作者:
Cremona J
Cremona J
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文献类型:
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作者:
Cremona J

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我们研究的理性比安奇新形式(重量2,平凡的字符,与合理的Hecke特征值)的LMFDB,没有相关的椭圆曲线,而是阿贝尔曲面与四元数乘法。其中两个例子表现出一种相当特殊的行为:我们表明,它们产生于扭曲的基础变化的一个经典的新形式与neuroypus字符的顺序4和8内部扭曲。
We study the rational Bianchi newforms (weight 2, trivial character, with rational Hecke eigenvalues) in the LMFDB that are not associated to elliptic curves, but instead to abelian surfaces with quaternionic multiplication. Two of these examples exhibit a rather special kind of behaviour: we show they arise from twisted base change of a classical newform with nebentypus character of order 4 and eight inner twists.