Ayala–Francis–Rozenblyum's topological stratified homotopy hypothesis

Let Strat\mathcal{S}\mathrm{trat} denote a homotopy theory of topological stratified spaces, and let \iCat\iCat denote the homotopy theory of \infty-categories. The exit path construction assigns to each topological stratified space an \infty-category, with morphisms represented by paths that remain in a stratum or immediately exit to a higher stratum. Ayala–Francis–Rozenblyum's topological stratified homotopy hypothesis. Topological exit paths define a fully faithful functor

Exit ⁣:Strat\iCat.\operatorname{Exit}\colon \mathcal{S}\mathrm{trat}\hookrightarrow \iCat.

This conjecture proposes that the homotopy theory of topological stratified spaces embeds fully faithfully into the homotopy theory of \infty-categories via exit paths. Its status is not resolved in the supplied source context.

Sources & referencesView supporting material

Primary source

Lukas Waas, “Presenting the topological stratified homotopy hypothesis”, arXiv:2403.07686 (2025).

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