# HG changeset patch # User Kevin Walker # Date 1303190280 25200 # Node ID 91973e94a126b6ec2354b66c2ec0d83ecdd2a2df # Parent 6de42a06468e0d60286f92d376adb4dcf18c9c13# Parent 9971e04ac93009b1614b8fca141b86e8659e7293 Automated merge with https://tqft.net/hg/blob/ diff -r 9971e04ac930 -r 91973e94a126 text/ncat.tex --- a/text/ncat.tex Thu Apr 14 20:36:08 2011 -0700 +++ b/text/ncat.tex Mon Apr 18 22:18:00 2011 -0700 @@ -1277,8 +1277,7 @@ Given $c\in\cl\cM(\bd M)$, let $\cM(M; c) \deq \bd^{-1}(c)$. If the $n$-category $\cC$ is enriched over some other category (e.g.\ vector spaces), -then $\cM(M; c)$ should be an object in that category for each marked $n$-ball $M$ -and $c\in \cC(\bd M)$. +then for each marked $n$-ball $M=(B,N)$ and $c\in \cC(\bd B \setminus N)$, the set $\cM(M; c)$ should be an object in that category. \begin{lem}[Boundary from domain and range] {Let $H = M_1 \cup_E M_2$, where $H$ is a marked $k{-}1$-hemisphere ($1\le k\le n$), @@ -1307,7 +1306,7 @@ (for both modules and $n$-categories) we have for each marked $k$-ball $(B, N)$ and each $k{-}1$-ball $Y\sub \bd B \setmin N$ a natural map from a subset of $\cM(B, N)$ to $\cC(Y)$. -The subset is the subset of morphisms which are appropriately splittable (transverse to the +This subset $\cM(B,N)\trans{\bdy Y}$ is the subset of morphisms which are appropriately splittable (transverse to the cutting submanifolds). This fact will be used below. @@ -1333,11 +1332,11 @@ and $Y = M_1\cap M_2$ is a marked $k{-}1$-ball. Let $E = \bd Y$, which is a marked $k{-}2$-hemisphere. Note that each of $M$, $M_1$ and $M_2$ has its boundary split into two marked $k{-}1$-balls by $E$. -We have restriction (domain or range) maps $\cM(M_i)_E \to \cM(Y)$. -Let $\cM(M_1)_E \times_{\cM(Y)} \cM(M_2)_E$ denote the fibered product of these two maps. +We have restriction (domain or range) maps $\cM(M_i)\trans E \to \cM(Y)$. +Let $\cM(M_1) \trans E \times_{\cM(Y)} \cM(M_2) \trans E$ denote the fibered product of these two maps. Then (axiom) we have a map \[ - \gl_Y : \cM(M_1)_E \times_{\cM(Y)} \cM(M_2)_E \to \cM(M)_E + \gl_Y : \cM(M_1) \trans E \times_{\cM(Y)} \cM(M_2) \trans E \to \cM(M) \trans E \] which is natural with respect to the actions of homeomorphisms, and also compatible with restrictions to the intersection of the boundaries of $M$ and $M_i$. @@ -1357,11 +1356,11 @@ $X$ is a plain $k$-ball, and $Y = X\cap M'$ is a $k{-}1$-ball. Let $E = \bd Y$, which is a $k{-}2$-sphere. -We have restriction maps $\cM(M')_E \to \cC(Y)$ and $\cC(X)_E\to \cC(Y)$. -Let $\cC(X)\trans E \times_{\cC(Y)} \cM(M')_E$ denote the fibered product of these two maps. +We have restriction maps $\cM(M') \trans E \to \cC(Y)$ and $\cC(X) \trans E\to \cC(Y)$. +Let $\cC(X)\trans E \times_{\cC(Y)} \cM(M') \trans E$ denote the fibered product of these two maps. Then (axiom) we have a map \[ - \gl_Y :\cC(X)\trans E \times_{\cC(Y)} \cM(M')_E \to \cM(M)_E + \gl_Y :\cC(X)\trans E \times_{\cC(Y)} \cM(M')\trans E \to \cM(M) \trans E \] which is natural with respect to the actions of homeomorphisms, and also compatible with restrictions to the intersection of the boundaries of $X$ and $M'$.