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Iterated splitting and the classification of knot tunnels

机译:迭代分裂与结形隧道分类

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摘要

For a genus-1 1-bridge knot in S3, that is, a (l,l)-knot, a middle tunnel is a tunnel that is not an upper or lower tunnel for some (1,1)-position. Most torus knots have a middle tunnel, and non-torus-knot examples were obtained by Goda, Hayashi, and Ishihara. In a previous paper, we generalized their construction and calculated the slope invariants for the resulting examples. We give an iterated version of the construction that produces many more examples, and calculate their slope invariants. If one starts with the trivial knot, the iterated constructions produce all the 2-bridge knots, giving a new calculation of the slope invariants of their tunnels. In the final section we compile a list of the known possibilities for the set of tunnels of a given tunnel number 1 knot.
机译:对于S3中的属1 1桥结,即(l,l)结,中间隧道是在某些(1,1)位置不是上隧道或下隧道的隧道。大多数环结都有中间的隧道,非环结的例子是Goda,Hayashi和Ishihara获得的。在先前的论文中,我们对它们的构造进行了概括,并为所得示例计算了斜率不变量。我们给出了构造的迭代版本,该版本产生了更多示例,并计算了它们的斜率不变性。如果从平凡的结开始,那么迭代的结构将产生所有的2桥结,从而对其隧道的坡度不变性进行了新的计算。在最后一节中,我们针对给定隧道数为1节的隧道集合,列出了已知可能性的列表。

著录项

  • 来源
    《Journal of the Mathematical Society of Japan》 |2013年第2期|671-686|共16页
  • 作者

    Sangbum Cho; Darryl McCullough;

  • 作者单位

    Department of Mathematics Education Hanyang University Seoul 133-791, Korea;

    Department of Mathematics University of Oklahoma Norman Oklahoma 73019, USA;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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