# HG changeset patch # User Kevin Walker # Date 1309796797 21600 # Node ID 40b2a6d891c6e14d8f9ac9c279fa818b78a998dc # Parent 002b4838cc34726898daa96f9e399166ef785df7# Parent c9b55efd79dda0489e5e59bbcf0c341f3e96e0cb Automated merge with https://tqft.net/hg/blob/ diff -r 002b4838cc34 -r 40b2a6d891c6 blob_changes_v3 --- a/blob_changes_v3 Thu Jun 30 09:12:32 2011 -0700 +++ b/blob_changes_v3 Mon Jul 04 10:26:37 2011 -0600 @@ -27,7 +27,7 @@ - added details to the construction of traditional 1-categories from disklike 1-categories (Appendix C.1) - extended the lemmas of Appendix B (about adapting families of homeomorphisms to open covers) to the topological category - modified families-of-homeomorphisms-action axiom for A-infinity n-categories, and added discussion of alternatives -- added n-cat axiom for existence of splittings +- added n-cat axiom for existence of splittings, and added similar axiom for fields - added transversality requirement to product morphism axiom - added remarks on Morita equivalence for n-categories - rewrote definition of colimit (in "From Balls to Manifolds" subsection) to allow for more general decompositions; also added more details diff -r 002b4838cc34 -r 40b2a6d891c6 text/evmap.tex --- a/text/evmap.tex Thu Jun 30 09:12:32 2011 -0700 +++ b/text/evmap.tex Mon Jul 04 10:26:37 2011 -0600 @@ -82,7 +82,7 @@ \begin{proof} Since both complexes are free, it suffices to show that the inclusion induces an isomorphism of homotopy groups. -To show that it suffices to show that for any finitely generated +To show this it in turn suffices to show that for any finitely generated pair $(C_*, D_*)$, with $D_*$ a subcomplex of $C_*$ such that \[ (C_*, D_*) \sub (\bc_*(X), \sbc_*(X)) diff -r 002b4838cc34 -r 40b2a6d891c6 text/tqftreview.tex --- a/text/tqftreview.tex Thu Jun 30 09:12:32 2011 -0700 +++ b/text/tqftreview.tex Mon Jul 04 10:26:37 2011 -0600 @@ -192,6 +192,14 @@ the gluing map is surjective. We say that fields in the image of the gluing map are transverse to $Y$ or splittable along $Y$. +\item Splittings. +Let $c\in \cC_k(X)$ and let $Y\sub X$ be a codimension 1 properly embedded submanifold of $X$. +Then for most small perturbations of $Y$ (i.e.\ for an open dense +subset of such perturbations) $c$ splits along $Y$. +(In Example \ref{ex:maps-to-a-space(fields)}, $c$ splits along all such $Y$. +In Example \ref{ex:traditional-n-categories(fields)}, $c$ splits along $Y$ so long as $Y$ +is in general position with respect to the cell decomposition +associated to $c$.) \item Product fields. There are maps $\cC_{k-1}(Y) \to \cC_k(Y \times I)$, denoted $c \mapsto c\times I$.