Mogami manifolds, nuclei, and 3 D simplicial gravity

Mogami manifolds, nuclei, and 3 D simplicial gravity
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最上流形、原子核和 3D 单纯引力

DOI:
10.1016/j.nuclphysb.2017.04.001
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发表时间:
2017
期刊:
影响因子:
2.8
通讯作者:
Benedetti, Bruno
Benedetti, Bruno
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Benedetti, Bruno

文献摘要

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Mogami在1995年引入了一大类三角化的三维伪满褶,此后被称为“Mogami伪满褶”。他用四面体的数量证明了这个类的规模的指数界。是否所有的三球都是Mogami的问题一直悬而未决;如果答案是正的,则意味着具有n四面体的3球(和3球)总数的指数上界非常理想。这里我们给出一个否定的答案:许多3球不是Mogami。在得到这个结果的过程中,我们在Collet-Eckmann-Younan的意义上,用原子核来描述Mogami性质:“唯一的三维Mogami核是四面体”。
Mogami introduced in 1995 a large class of triangulated 3-dimensional pseudomanifolds, henceforth called “Mogami pseudomanifolds”. He proved an exponential bound for the size of this class in terms of the number of tetrahedra. The question of whether all 3-balls are Mogami has remained open since; a positive answer would imply a much-desired exponential upper bound for the total number of 3-balls (and 3-spheres) withNtetrahedra.Here we provide a negative answer: many 3-balls are not Mogami. On the way to this result, we characterize the Mogami property in terms of nuclei, in the sense of Collet–Eckmann–Younan: “The only three-dimensional Mogami nucleus is the tetrahedron”.