--- a/blob_changes_v3 Wed Jun 29 23:06:29 2011 -0700
+++ b/blob_changes_v3 Mon Jul 04 10:25:42 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
--- a/text/evmap.tex Wed Jun 29 23:06:29 2011 -0700
+++ b/text/evmap.tex Mon Jul 04 10:25:42 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))
--- a/text/tqftreview.tex Wed Jun 29 23:06:29 2011 -0700
+++ b/text/tqftreview.tex Mon Jul 04 10:25:42 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
$c \mapsto c\times I$.