Topological invariants and fibration structure of complete intersection Calabi-Yau four-folds

Topological invariants and fibration structure of complete intersection Calabi-Yau four-folds
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完全交集Calabi-Yau四重体的拓扑不变量和纤维结构

DOI:
10.1007/jhep09(2014)093
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发表时间:
2014
影响因子:
5.4
通讯作者:
Alexander S. Hauptand Andre Lukas
Alexander S. Hauptand Andre Lukas
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
James Gray;Alexander S. Hauptand Andre Lukas

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本文研究了最近在文献[1]中发现的Calabi-Yau四重类的数学性质。[1]的文件。这个类由921,497个配置矩阵组成,它们对应于被描述为射影空间乘积中的完全相交的流形。对于列表中的每个流形,我们计算完整的霍奇钻石以及其他拓扑不变量,如陈类和交叉数。使用这些数据,我们得出结论,在我们的列表中至少有36,779个拓扑不同的流形。我们还研究了这些流形的纤维化结构,发现99.95%可以描述为椭圆纤维化。我们总共发现了50,114,908个椭圆纤维化,展示了许多流形纤维化的多种方式。26,088,498个纤维化的子类满足接纳截面的必要条件。完整的数据集可以在这里下载。
We investigate the mathematical properties of the class of Calabi-Yau four-folds recently found in ref.[1]. This class consists of 921,497 configuration matrices which correspond to manifolds that are described as complete intersections in products of projective spaces. For each manifold in the list, we compute the full Hodge diamond as well as additional topological invariants such as Chern classes and intersection numbers. Using this data, we conclude that there are at least 36,779 topologically distinct manifolds in our list. We also study the fibration structure of these manifolds and find that 99.95 percent can be described as elliptic fibrations. In total, we find 50,114,908 elliptic fibrations, demonstrating the multitude of ways in which many manifolds are fibered. A sub-class of 26,088,498 fibrations satisfy necessary conditions for admitting sections. The complete data set can be downloaded here.
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