text/ncat.tex
changeset 146 08bbcf3ec4d2
parent 145 b5c1a6aec50d
child 155 6224f29393c1
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   751 to $\cM(M)$,
   751 to $\cM(M)$,
   752 and these various multifold composition maps satisfy an
   752 and these various multifold composition maps satisfy an
   753 operad-type strict associativity condition.}
   753 operad-type strict associativity condition.}
   754 
   754 
   755 (The above operad-like structure is analogous to the swiss cheese operad
   755 (The above operad-like structure is analogous to the swiss cheese operad
   756 \nn{need citation}.)
   756 \cite{MR1718089}.)
   757 \nn{need to double-check that this is true.}
   757 \nn{need to double-check that this is true.}
   758 
   758 
   759 \xxpar{Module product (identity) morphisms:}
   759 \xxpar{Module product (identity) morphisms:}
   760 {Let $M$ be a marked $k$-ball and $D$ be a plain $m$-ball, with $k+m \le n$.
   760 {Let $M$ be a marked $k$-ball and $D$ be a plain $m$-ball, with $k+m \le n$.
   761 Then we have a map $\cM(M)\to \cM(M\times D)$, usually denoted $a\mapsto a\times D$ for $a\in \cM(M)$.
   761 Then we have a map $\cM(M)\to \cM(M\times D)$, usually denoted $a\mapsto a\times D$ for $a\in \cM(M)$.
   852 with $M_{ib}\cap Y_i$ being the marking.
   852 with $M_{ib}\cap Y_i$ being the marking.
   853 (See Figure \ref{mblabel}.)
   853 (See Figure \ref{mblabel}.)
   854 \begin{figure}[!ht]\begin{equation*}
   854 \begin{figure}[!ht]\begin{equation*}
   855 \mathfig{.9}{tempkw/mblabel}
   855 \mathfig{.9}{tempkw/mblabel}
   856 \end{equation*}\caption{A permissible decomposition of a manifold
   856 \end{equation*}\caption{A permissible decomposition of a manifold
   857 whose boundary components are labeled my $\cC$ modules $\{\cN_i\}$.}\label{mblabel}\end{figure}
   857 whose boundary components are labeled by $\cC$ modules $\{\cN_i\}$.}\label{mblabel}\end{figure}
   858 Given permissible decompositions $x$ and $y$, we say that $x$ is a refinement
   858 Given permissible decompositions $x$ and $y$, we say that $x$ is a refinement
   859 of $y$, or write $x \le y$, if each ball of $y$ is a union of balls of $x$.
   859 of $y$, or write $x \le y$, if each ball of $y$ is a union of balls of $x$.
   860 This defines a partial ordering $\cJ(W)$, which we will think of as a category.
   860 This defines a partial ordering $\cJ(W)$, which we will think of as a category.
   861 (The objects of $\cJ(D)$ are permissible decompositions of $W$, and there is a unique
   861 (The objects of $\cJ(D)$ are permissible decompositions of $W$, and there is a unique
   862 morphism from $x$ to $y$ if and only if $x$ is a refinement of $y$.)
   862 morphism from $x$ to $y$ if and only if $x$ is a refinement of $y$.)