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arXiv math/0008066math.GT
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代数二阶十个或十个以下交叉的结

Knots of Ten or Fewer Crossings of Algebraic Order Two

Andrius Tamulis

摘要:

和谐秩序的许多代数秩序二结十个或更少的交叉点已迄今未知。我们使用卡森-戈登不变量和扭曲的亚历山大多项式,发现,在所有情况下,但一种情况下,这些结不和谐秩序二。我们还发现,一类代数阶为2的非纽结的双扭数族具有无穷协调阶。

英文摘要:

The concordance orders of many algebraic order two knots of ten or fewer crossings have been heretofore unknown. We use Casson-Gordon invariants and twisted Alexander polynomials to find that, in all but one case, these knots do not have concordance order two. We also find that a certain family of algebraic order two twisted doubles of the unknot have infinite concordance order.

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