pnas/pnas.tex
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   760 \end{equation*}
   760 \end{equation*}
   761 \end{itemize}
   761 \end{itemize}
   762 \end{thm}
   762 \end{thm}
   763 
   763 
   764 \begin{proof} (Sketch.)
   764 \begin{proof} (Sketch.)
   765 
   765 The $A_\infty$ action of $\bc_*(Y)$ follows from the naturality of the blob complex with respect to gluing
       
   766 and the $C_*(\Homeo(-))$ action of Theorem \ref{thm:evaluation}.
       
   767 
       
   768 Let $T_*$ denote the self tensor product of $\bc_*(X)$, which is a homotopy colimit.
       
   769 Let $X_{\mathrm gl}$ denote $X$ glued to itself along $Y$.
       
   770 There is a tautological map from the 0-simplices of $T_*$ to $\bc_*(X_{\mathrm gl})$,
       
   771 and this map can be extended to a chain map on all of $T_*$ by sending the higher simplices to zero.
       
   772 Constructing a homotopy inverse to this natural map invloves making various choices, but one can show that the
       
   773 choices form contractible subcomplexes and apply the acyclic models theorem.
   766 \end{proof}
   774 \end{proof}
   767 
   775 
   768 We next describe the blob complex for product manifolds, in terms of the $A_\infty$ blob complex of the $A_\infty$ $n$-categories constructed as above.
   776 We next describe the blob complex for product manifolds, in terms of the $A_\infty$ blob complex of the $A_\infty$ $n$-categories constructed as above.
   769 
   777 
   770 \begin{thm}[Product formula]
   778 \begin{thm}[Product formula]
   778 \]
   786 \]
   779 \end{thm}
   787 \end{thm}
   780 The statement can be generalized to arbitrary fibre bundles, and indeed to arbitrary maps
   788 The statement can be generalized to arbitrary fibre bundles, and indeed to arbitrary maps
   781 (see \cite[\S7.1]{1009.5025}).
   789 (see \cite[\S7.1]{1009.5025}).
   782 
   790 
   783 \nn{Theorem \ref{thm:product} is proved in \S \ref{ss:product-formula}, and Theorem \ref{thm:gluing} in \S \ref{sec:gluing}.}
   791 \begin{proof} (Sketch.)
       
   792 
       
   793 \end{proof}
       
   794 
       
   795 %\nn{Theorem \ref{thm:product} is proved in \S \ref{ss:product-formula}, and Theorem \ref{thm:gluing} in \S \ref{sec:gluing}.}
   784 
   796 
   785 \section{Higher Deligne conjecture}
   797 \section{Higher Deligne conjecture}
   786 \label{sec:applications}
   798 \label{sec:applications}
   787 
   799 
   788 \begin{thm}[Higher dimensional Deligne conjecture]
   800 \begin{thm}[Higher dimensional Deligne conjecture]