The canonical decomposition of once-punctured torus bundles

The canonical decomposition of once-punctured torus bundles
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一次刺穿环面束的正则分解

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发表时间:
2001
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通讯作者:
M. Lackenby
M. Lackenby
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作者:
M. Lackenby

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抽象。我们确定了圆上每一个双曲一次穿孔环面丛的正则多面体分解。事实上,我们表明,唯一的理想多面体分解,这是直的双曲结构,这是不变的,在一定的对合是理想的三角定义的弗洛伊德和哈彻。与以前的工作在这个问题上,我们使用的技术不是几何。相反,他们涉及角多面体分解,薄的位置和几乎正常的表面理论的版本。
Abstract. We determine the canonical polyhedral decomposition of every hyperbolic once-punctured torus bundle over the circle. In fact, we show that the only ideal polyhedral decomposition that is straight in the hyperbolic structure and that is invariant under a certain involution is the ideal triangulation defined by Floyd and Hatcher. Unlike previous work on this problem, the techniques we use are not geometric. Instead, they involve angled polyhedral decompositions, thin position and a version of almost normal surface theory.