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Positive Hermitian curvature flow on nilpotent and almost-abelian complex Lie groups
Annals of Global Analysis and Geometry ( IF 0.6 ) Pub Date : 2021-06-09 , DOI: 10.1007/s10455-021-09782-5
James Stanfield

We study the positive Hermitian curvature flow on the space of left-invariant metrics on complex Lie groups. We show that in the nilpotent case, the flow exists for all positive times and subconverges in the Cheeger–Gromov sense to a soliton. We also show convergence to a soliton when the complex Lie group is almost abelian. That is, when its Lie algebra admits a (complex) co-dimension one abelian ideal. Finally, we study solitons in the almost-abelian setting. We prove uniqueness and completely classify all left-invariant, almost-abelian solitons, giving a method to construct examples in arbitrary dimensions, many of which admit co-compact lattices.



中文翻译:

幂零和几乎阿贝尔复李群上的正厄米曲率流

我们研究了复杂李群的左不变度量空间上的正厄米曲率流。我们表明,在幂零情况下,流存在于所有正时间,并在 Cheeger-Gromov 意义上子收敛到孤子。当复李群几乎是阿贝尔群时,我们还展示了对孤子的收敛。也就是说,当它的李代数承认一个(复)余维一个阿贝尔理想时。最后,我们在几乎阿贝尔环境中研究孤子。我们证明了唯一性并对所有左不变的、几乎阿贝尔的孤子进行了完全分类,给出了一种在任意维度上构造示例的方法,其中许多维度都允许共紧格。

更新日期:2021-06-09
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