English

On stratifications and poset-stratified spaces

General Topology 2025-07-09 v2 Algebraic Topology

Abstract

A stratified space is a topological space equipped with a \emph{stratification}, which is a decomposition or partition of the topological space satisfying certain extra conditions. More recently, the notion of poset-stratified space, i.e., topological space endowed with a continuous map to a poset with its Alexandrov topology, has been popularized. Both notions of stratified spaces are ubiquitous in mathematics, ranging from investigations of singular structures in algebraic geometry to extensions of the homotopy hypothesis in higher category theory. In this article we study the precise mathematical relation between these different approaches to stratified spaces.

Keywords

Cite

@article{arxiv.2407.17690,
  title  = {On stratifications and poset-stratified spaces},
  author = {Lukas Waas and Jon Woolf and Shoji Yokura},
  journal= {arXiv preprint arXiv:2407.17690},
  year   = {2025}
}

Comments

Any comments are welcome; a revised version to appear in Algebraic & Geometric Topology

R2 v1 2026-06-28T17:52:57.688Z