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Homogeneous 8-manifolds admitting invariant Spin(7)-structures
International Journal of Mathematics ( IF 0.6 ) Pub Date : 2020-07-07 , DOI: 10.1142/s0129167x20500603
Dmitri Alekseevsky 1, 2 , Ioannis Chrysikos 2 , Anna Fino 3 , Alberto Raffero 3
Affiliation  

We study compact, simply connected, homogeneous 8-manifolds admitting invariant [Formula: see text]-structures, classifying all canonical presentations [Formula: see text] of such spaces, with [Formula: see text] simply connected. For each presentation, we exhibit explicit examples of invariant [Formula: see text]-structures and we describe their type, according to Fernández classification. Finally, we analyze the associated [Formula: see text]-connection with torsion.

中文翻译:

承认不变自旋(7)结构的同质 8 流形

我们研究紧凑的、简单连接的、同质的 8 流形,承认不变的 [公式:参见文本]-结构,对此类空间的所有规范表示 [公式:参见文本] 进行分类,其中 [公式:参见文本] 是简单连接的。对于每个演示文稿,我们都展示了不变 [公式:见文本] 结构的明确示例,并根据 Fernández 分类描述了它们的类型。最后,我们分析了关联的[公式:见正文]-与扭转的联系。
更新日期:2020-07-07
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