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arXiv 2609.08395math.PRmath.CO

一般随机几何图模型中的平面性与交叉数

Planarity and number of crossings in general models of random geometric graphs

  • Osnabrück University(奥斯纳布吕克大学)

机构由 AI 辅助整理,请以论文原文为准。

Hanna Döring, Kinga Nagy

AI总结:

本文研究一般随机几何图(顶点为泊松点过程,边依赖独立标记)的投影边交叉数与图论平面性,重点分析重尾(多项式尾)标记分布,发现渐近行为随尾指数显著变化。

AI中文摘要:

考虑一个随机几何图,其顶点由泊松点过程给出,边依赖于与顶点及顶点对对应的独立标记。本文研究这一一般模型中的两个相关问题:该图投影中的边交叉数,以及其图论意义上的平面性。我们重点关注具有重尾标记分布的模型,特别是具有任意指数的多项式尾。我们表明,渐近行为随该指数变化而显著不同。

英文摘要:

Consider a random geometric graph with vertices given by a Poisson point process, and whose edges depend on independent marks corresponding to the vertices and pairs of vertices. In this paper, we study two related questions on this general model: the number of edge crossings in a projection of this graph, and its graph-theoretical planarity. We focus on models with heavy-tailed mark distributions, in particular with polynomial tails with arbitrary exponents. We show that the asymptotic behaviour varies significantly depending on this exponent.

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