The volume and Chern-Simons invariant of a representation

The volume and Chern-Simons invariant of a representation
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DOI:
10.1215/00127094-2009-058
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发表时间:
2007-10
影响因子:
2.5
通讯作者:
C. Zickert
C. Zickert
中科院分区:
数学1区
文献类型:
--
作者:
C. Zickert

文献摘要

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我们给出了一个有效的单纯形公式,用于表示 3 流形的边界抛物线 PSL(2,C) 表示的体积和 Chern-Simons 不变量。如果表示是双曲 3 流形的几何表示,则我们的公式直接从理想三角剖分计算体积和 Chern-Simons 不变量,而不使用额外的组合拓扑。特别是,陈-西蒙斯不变量的计算与体积一样容易。
We give an efficient simplicial formula for the volume and Chern-Simons invariant of a boundary-parabolic PSL(2,C)-representation of a tame 3-manifold. If the representation is the geometric representation of a hyperbolic 3-manifold, our formula computes the volume and Chern-Simons invariant directly from an ideal triangulation with no use of additional combinatorial topology. In particular, the Chern-Simons invariant is computed just as easily as the volume.