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The distribution of knots in the Petaluma model

2017/06/30 by Chaim Even-Zohar, Chaim Even‐Zohar, Joel Hass +3
Mathematics · #Combinatorics #Geometric and Algebraic Topology #Homotopy and Cohomology in Algebraic Topology #Knot (papermaking) #Mathematical Dynamics and Fractals #Mathematics #Petal #math.CO #math.GT #math.PR #msc:57M25 #msc:60B05

paper · pdf · doi:10.2140/agt.2018.18.3647

published as Algebr. Geom. Topol. 18 (2018) 3647-3667

arxiv created 2018/06/08 · openalex publication_date 2018/10/18 · arxiv updated 2018/10/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The representation of knots by petal diagrams (Adams et al 2012) naturally defines a sequence of distributions on the set of knots. We establish some basic properties of this randomized knot model. We prove that in the random [math] –petal model the probability of obtaining every specific knot type decays to zero as [math] , the number of petals, grows. In addition we improve the bounds relating the crossing number and the petal number of a knot. This implies that the [math] –petal model represents at least exponentially many distinct knots.\n¶ Past approaches to showing, in some random models, that individual knot types occur with vanishing probability rely on the prevalence of localized connect summands as the complexity of the knot increases. However, this phenomenon is not clear in other models, including petal diagrams, random grid diagrams and uniform random polygons. Thus we provide a new approach to investigate this question.

Citations