Factorization homology I: higher categories

We construct a pairing, which we call factorization homology, between framed manifolds and higher categories. The essential geometric notion is that of a vari-framing of a stratified manifold, which is a framing on each stratum together with a coherent system of compatibilities of framings along links between strata. Our main result constructs labeling systems on disk-stratified vari-framed $n$-manifolds from $(\mathrm{\infty },n)$-categories. These $(\mathrm{\infty },n)$-categories, in contrast with the literature to date, are not required to have adjoints. This allows the following conceptual definition: the factorization homology $${\int }_M\mathcal{C}$$ of a framed $n$-manifold $M$ with coefficients in an $(\mathrm{\infty },n)$-category $\mathcal{C}$ is the classifying space of $\text{cC}$-labeled disk-stratifications over $M$.