diff -r b0fc3660fa89 -r a044fda18400 text/ncat.tex --- a/text/ncat.tex Wed Aug 26 23:10:55 2009 +0000 +++ b/text/ncat.tex Tue Sep 15 02:55:39 2009 +0000 @@ -432,8 +432,17 @@ of $y$, or write $x \le y$, if each ball of $y$ is a union of balls of $x$. This defines a partial ordering $\cJ(W)$, which we will think of as a category. (The objects of $\cJ(W)$ are permissible decompositions of $W$, and there is a unique -morphism from $x$ to $y$ if and only if $x$ is a refinement of $y$.) -\nn{need figures} +morphism from $x$ to $y$ if and only if $x$ is a refinement of $y$. +See Figure \ref{partofJfig}.) + +\begin{figure}[!ht] +\begin{equation*} +\mathfig{.63}{tempkw/zz2} +\end{equation*} +\caption{A small part of $\cJ(W)$} +\label{partofJfig} +\end{figure} + $\cC$ determines a functor $\psi_\cC$ from $\cJ(W)$ to the category of sets @@ -604,9 +613,17 @@ We require two sorts of composition (gluing) for modules, corresponding to two ways of splitting a marked $k$-ball into two (marked or plain) $k$-balls. -First, we can compose two module morphisms to get another module morphism. +(See Figure \ref{zzz3}.) -\nn{need figures for next two axioms} +\begin{figure}[!ht] +\begin{equation*} +\mathfig{.63}{tempkw/zz3} +\end{equation*} +\caption{Module composition (top); $n$-category action (bottom)} +\label{zzz3} +\end{figure} + +First, we can compose two module morphisms to get another module morphism. \xxpar{Module composition:} {Let $M = M_1 \cup_Y M_2$, where $M$, $M_1$ and $M_2$ are marked $k$-balls ($0\le k\le n$) @@ -624,6 +641,8 @@ If $k < n$ we require that $\gl_Y$ is injective. (For $k=n$, see below.)} + + Second, we can compose an $n$-category morphism with a module morphism to get another module morphism. We'll call this the action map to distinguish it from the other kind of composition. @@ -649,7 +668,16 @@ Note that the above associativity axiom applies to mixtures of module composition, action maps and $n$-category composition. -See Figure xxxx. +See Figure \ref{zzz1b}. + +\begin{figure}[!ht] +\begin{equation*} +\mathfig{1}{tempkw/zz1b} +\end{equation*} +\caption{Two examples of mixed associativity} +\label{zzz1b} +\end{figure} + The above three axioms are equivalent to the following axiom, which we state in slightly vague form. @@ -762,7 +790,6 @@ This defines a partial ordering $\cJ(W)$, which we will think of as a category. (The objects of $\cJ(D)$ are permissible decompositions of $W$, and there is a unique morphism from $x$ to $y$ if and only if $x$ is a refinement of $y$.) -\nn{need figures} $\cN$ determines a functor $\psi_\cN$ from $\cJ(W)$ to the category of sets