Lines and circles joining components of a link

Julia Viro

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arXiv · math/0511527

Lines and circles joining components of a link

Julia Viro

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Abstract

We estimate from below the number of lines meeting each of given 4 disjoint smooth closed curves in a given cyclic order in the real projective 3-space and in a given linear order in the Euclidean 3-space. Similarly, we estimate the number of circles meeting in a given cyclic order given 6 disjoint smooth closed curves in Euclidean 3-space. The estimations are formulated in terms of linking numbers of the curves and obtained by orienting of the corresponding configuration spaces and evaluating of their signatures. This involves a study of a surface swept by lines meeting 3 given disjoint smooth closed curves and a surface swept in the 3-space by circles meeting 5 given disjoint smooth closed curves. Higher dimensional generalizations of these results are outlined.

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BibTeX RIS

Julia Viro. 2005-11-21. Lines and circles joining components of a link. https://arxiv.org/abs/math/0511527

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