源于着色三角剖分的 PL 4-流形的三剖分
几何拓扑
2025-01-29 v3
摘要
本文的目的有二:首先,将源自着色三角剖分(或等价地,编码它们的着色图,称为 gems)的 gem 诱导三剖分概念推广到不可定向紧 4-流形;其次,证明在可定向与不可定向情形下,若边界同胚于 上球丛的连通和,则 gem 诱导三剖分自然导出相应闭 4-流形的三剖分。作为推论,通过着色三角剖分,获得了任意闭可定向 4-流形基于手术描述的三剖分亏格估计。
引用
@article{arxiv.2312.01902,
title = {Trisections of PL 4-manifolds arising from colored triangulations},
author = {Maria Rita Casali and Paola Cristofori},
journal= {arXiv preprint arXiv:2312.01902},
year = {2025}
}
备注
14 pages, 4 figures. The case of disconnected diagrams has been taken into account