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arXiv 1202.0765math.GT
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链补的代数不变式、突变和可置换性

Algebraic invariants, mutation, and commensurability of link complements

Eric Chesebro, Jason DeBlois

摘要:

通过在全测地四穿孔球面上粘贴缠结,构造了一类双曲链补族,并研究了其成员间的可拓关系。那些具有不同体积的是不可区分的,通过它们的剪刀同余类来区分。突变产生任意大的非等距流形的有限子族,具有相同的体积和剪刀同余类。根据突变的选择,这些流形可能是可解的或不可解的,在后一种情况下通过尖点参数来区分。它们都有迹场Q(i,\sqrt{2}),但有些有积分迹,而有些没有。

英文摘要:

We construct a family of hyperbolic link complements by gluing tangles along totally geodesic four-punctured spheres, then investigate the commensurability relation among its members. Those with different volume are incommensurable, distinguished by their scissors congruence classes. Mutation produces arbitrarily large finite subfamilies of nonisometric manifolds with the same volume and scissors congruence class. Depending on the choice of mutation, these manifolds may be commensurable or incommensurable, distinguished in the latter case by cusp parameters. All have trace field Q(i,\sqrt{2}), but some have integral traces while others do not.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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