Positive links with arrangements of pseudocircles as shadows
Résumé
An arrangement of pseudocircles A is a collection of Jordan curves in the plane that pairwise intersect (transversally) at exactly two points. How many non-equivalent links have A as their shadow? Motivated by this question, we study the number of non-equivalent positive oriented links that have an arrangement of pseudocircles as their shadow. We give sharp estimates on this number when A is one of the three unavoidable arrangements of pseudocircles.
Domaines
Mathématiques [math]| Origine | Fichiers produits par l'(les) auteur(s) |
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