# HG changeset patch # User Scott Morrison # Date 1278350865 25200 # Node ID 2191215dae1090f3ab30784278cac7146aaf5adf # Parent 2a9c637182f096f1c43b3dfa3fd9281e682c7ed1 minor diff -r 2a9c637182f0 -r 2191215dae10 text/appendixes/comparing_defs.tex --- a/text/appendixes/comparing_defs.tex Thu Jun 24 14:21:51 2010 -0400 +++ b/text/appendixes/comparing_defs.tex Mon Jul 05 10:27:45 2010 -0700 @@ -200,11 +200,10 @@ \subsection{$A_\infty$ $1$-categories} \label{sec:comparing-A-infty} -In this section, we make contact between the usual definition of an $A_\infty$ algebra -and our definition of a topological $A_\infty$ algebra, from Definition \ref{defn:topological-Ainfty-category}. +In this section, we make contact between the usual definition of an $A_\infty$ category +and our definition of a topological $A_\infty$ $1$-category, from \S \ref{???}. -We begin be restricting the data of a topological $A_\infty$ algebra to the standard interval $[0,1]$, -which we can alternatively characterise as: +That definition associates a chain complex to every interval, and we begin by giving an alternative definition that is entirely in terms of the chain complex associated to the standard interval $[0,1]$. \begin{defn} A \emph{topological $A_\infty$ category on $[0,1]$} $\cC$ has a set of objects $\Obj(\cC)$, and for each $a,b \in \Obj(\cC)$, a chain complex $\cC_{a,b}$, along with @@ -222,7 +221,7 @@ In the $X$-labeled case, we insist that the appropriate labels match up. Saying we have an action of this operad means that for each labeled cell decomposition $0 < x_1< \cdots < x_k < 1$, $a_0, \ldots, a_{k+1} \subset \Obj(\cC)$, there is a chain -map $$\cC_{a_0,a_1} \tensor \cdots \tensor \cC_{a_k,a_{k+1}} \to \cC(a_0,a_{k+1})$$ and these +map $$\cC_{a_0,a_1} \tensor \cdots \tensor \cC_{a_k,a_{k+1}} \to \cC_{a_0,a_{k+1}}$$ and these chain maps compose exactly as the cell decompositions. An action of $\CD{[0,1]}$ is compatible with an action of the cell decomposition operad if given a decomposition $\pi$, and a family of diffeomorphisms $f \in \CD{[0,1]}$ which diff -r 2a9c637182f0 -r 2191215dae10 text/comm_alg.tex --- a/text/comm_alg.tex Thu Jun 24 14:21:51 2010 -0400 +++ b/text/comm_alg.tex Mon Jul 05 10:27:45 2010 -0700 @@ -193,5 +193,6 @@ \item compare the topological computation for truncated polynomial algebra with \cite{MR1600246} \item multivariable truncated polynomial algebras (at least mention them) \item ideally, say something more about higher hochschild homology (maybe sketch idea for proof of equivalence) +\item say something about SMCs as $n$-categories, e.g. Vect and K-theory. \end{itemize}