Groupoid Actions on Fractafolds

Groupoid Actions on Fractafolds
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Fratafolds 上的 Groupoid 动作

DOI:
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发表时间:
2013
期刊:
影响因子:
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通讯作者:
A. Kumjian
A. Kumjian
中科院分区:
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文献类型:
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作者:
Marius Ionescu;A. Kumjian

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我们在一个完全不连通集上定义一个丛,使得每个纤维与分形爆破同胚。我们证明了在我们的分形丛上存在一个Renault{Deaconu广群的自然作用,并且由此产生的作用广群本身也是一个Renault{ Deaconu广群。我们还证明了当丛是局部紧的时,伴随C -代数是本原的,并且有稠密定义的下连续迹。
We define a bundle over a totally disconnected set such that each fiber is homeo- morphic to a fractal blowup. We prove that there is a natural action of a Renault{Deaconu groupoid on our fractafold bundle and that the resulting action groupoid is a Renault{ Deaconu groupoid itself. We also show that when the bundle is locally compact the associ- ated C -algebra is primitive and has a densely defined lower-semicontinuous trace.