埃德蒙兹的双向量和三向量的数据集与实现
Endre Boros1, Vladimir Gurvich1,2, Matjaž Krnc3,4
1RUTCOR, Rutgers University, USA.
Data in brief
|September 3, 2024
概括
本研究介绍了"地理"双向量和三向量,它们代表了嵌入在表面的双图的度序. 介绍了这些地理向量及其实现的数据集,扩展了图形理论概念.
科学领域:
- 图形理论是指图形的理论.
- 计算拓学的计算拓.
- 离散几何学的离散几何学.
背景情况:
- 双图及其与地图嵌入的关系是由杰克·埃德蒙兹于1965年引入的.
- 双图G和G*的一个必要条件是它们的度序 (d,t) 与表面的欧勒特征有关.
- 描述哪些程度序列对 (双向量) 是可实现的 (地理) 仍然是一个开放的问题.
研究的目的:
- 将地理双向量概念扩展到地理三向量,用于3色偶数多向量图.
- 为了建立条件为三向量 (d,t, δ) 是可行的和地理.
- 展示地理双向量和三向量的数据集,并证明它们的地理性质.
主要方法:
- 定义嵌入在具有三角形面的表面中的三色偶数多图.
- 基于顶点颜色度和欧勒特征的三向量的可行性条件的制定.
- 为地理双向量和三向量构建和验证实现.
主要成果:
- 提醒了双图嵌入涉及度序列和欧勒特征的必要条件.
- 可行和地理三向量的概念被正式定义为3色三角.
- 编制了一个地理双向量和三向量的数据集,并支持实现.
结论:
- 地理三向量概括了地理双向量,为研究表面嵌入提供了更丰富的框架.
- 本文所介绍的数据集为这些图形结构提供了具体的例子和证明.
- 这项工作有助于解决在图形嵌入中描述可实现的度序列的开放问题.
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