曲面上的弧族和曲线族
Universal families of arcs and curves on surfaces
摘要：
本文的主要目的是研究曲面上曲线族的最小尺寸，该曲线族具有以下性质：曲面上的简单闭曲线族$Γ$实现所有类型的裤子分解，如果对于曲面的任何裤子分解，存在将其发送到$Γ$中的曲线子集的同胚.对这类泛曲线族的研究是由图的嵌入、联合交叉数和寻找模空间的中心等问题引起的。在没有穿孔的表面的情况下，我们提供了一个指数上界和超线性下界的最小尺寸的一个家庭的曲线，实现所有类型的裤子分解。我们还提供了上界和下界的情况下，表面穿孔，我们可以考虑标记或未标记，并调查一个类似的概念，多边形三角剖分的普遍性，我们提供的界限是紧对数因子。
英文摘要：
The main goal of this paper is to investigate the minimal size of families of curves on surfaces with the following property: a family of simple closed curves $Γ$ on a surface realizes all types of pants decompositions if for any pants decomposition of the surface, there exists a homeomorphism sending it to a subset of the curves in $Γ$. The study of such universal families of curves is motivated by questions on graph embeddings, joint crossing numbers and finding an elusive center of moduli space. In the case of surfaces without punctures, we provide an exponential upper bound and a superlinear lower bound on the minimal size of a family of curves that realizes all types of pants decompositions. We also provide upper and lower bounds in the case of surfaces with punctures which we can consider labelled or unlabelled, and investigate a similar concept of universality for triangulations of polygons, where we provide bounds which are tight up to logarithmic factors.
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。
