text/ncat.tex
changeset 551 9dfb5db2acd7
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    43 Thus we associate a set of $k$-morphisms $\cC_k(X)$ to any $k$-manifold $X$ homeomorphic 
    43 Thus we associate a set of $k$-morphisms $\cC_k(X)$ to any $k$-manifold $X$ homeomorphic 
    44 to the standard $k$-ball.
    44 to the standard $k$-ball.
    45 By ``a $k$-ball" we mean any $k$-manifold which is homeomorphic to the 
    45 By ``a $k$-ball" we mean any $k$-manifold which is homeomorphic to the 
    46 standard $k$-ball.
    46 standard $k$-ball.
    47 We {\it do not} assume that it is equipped with a 
    47 We {\it do not} assume that it is equipped with a 
    48 preferred homeomorphism to the standard $k$-ball, and the same applies to ``a $k$-sphere" below.
    48 preferred homeomorphism to the standard $k$-ball, and the same applies to ``a $k$-sphere" below. \nn{List the axiom numbers here, mentioning alternate versions, and also the same in the module section.}
    49 
    49 
    50 Given a homeomorphism $f:X\to Y$ between $k$-balls (not necessarily fixed on 
    50 Given a homeomorphism $f:X\to Y$ between $k$-balls (not necessarily fixed on 
    51 the boundary), we want a corresponding
    51 the boundary), we want a corresponding
    52 bijection of sets $f:\cC(X)\to \cC(Y)$.
    52 bijection of sets $f:\cC(X)\to \cC(Y)$.
    53 (This will imply ``strong duality", among other things.) Putting these together, we have
    53 (This will imply ``strong duality", among other things.) Putting these together, we have
   463 In the case where $\cC(X)$ is the set of all labeled embedded cell complexes $K$ in $X$, 
   463 In the case where $\cC(X)$ is the set of all labeled embedded cell complexes $K$ in $X$, 
   464 define $\pi^*(K) = \pi\inv(K)$, with each codimension $i$ cell $\pi\inv(c)$ labeled by the
   464 define $\pi^*(K) = \pi\inv(K)$, with each codimension $i$ cell $\pi\inv(c)$ labeled by the
   465 same (traditional) $i$-morphism as the corresponding codimension $i$ cell $c$.
   465 same (traditional) $i$-morphism as the corresponding codimension $i$ cell $c$.
   466 
   466 
   467 
   467 
   468 \addtocounter{axiom}{-1}
   468 %\addtocounter{axiom}{-1}
   469 \begin{axiom}[Product (identity) morphisms]
   469 \begin{axiom}[Product (identity) morphisms]
   470 For each pinched product $\pi:E\to X$, with $X$ a $k$-ball and $E$ a $k{+}m$-ball ($m\ge 1$),
   470 For each pinched product $\pi:E\to X$, with $X$ a $k$-ball and $E$ a $k{+}m$-ball ($m\ge 1$),
   471 there is a map $\pi^*:\cC(X)\to \cC(E)$.
   471 there is a map $\pi^*:\cC(X)\to \cC(E)$.
   472 These maps must satisfy the following conditions.
   472 These maps must satisfy the following conditions.
   473 \begin{enumerate}
   473 \begin{enumerate}
   590 We call the equivalence relation generated by collar maps and homeomorphisms
   590 We call the equivalence relation generated by collar maps and homeomorphisms
   591 isotopic (rel boundary) to the identity {\it extended isotopy}.
   591 isotopic (rel boundary) to the identity {\it extended isotopy}.
   592 
   592 
   593 The revised axiom is
   593 The revised axiom is
   594 
   594 
   595 \addtocounter{axiom}{-1}
   595 %\addtocounter{axiom}{-1}
   596 \begin{axiom}[\textup{\textbf{[plain  version]}} Extended isotopy invariance in dimension $n$.]
   596 \begin{axiom}[\textup{\textbf{[plain  version]}} Extended isotopy invariance in dimension $n$.]
   597 \label{axiom:extended-isotopies}
   597 \label{axiom:extended-isotopies}
   598 Let $X$ be an $n$-ball and $f: X\to X$ be a homeomorphism which restricts
   598 Let $X$ be an $n$-ball and $f: X\to X$ be a homeomorphism which restricts
   599 to the identity on $\bd X$ and isotopic (rel boundary) to the identity.
   599 to the identity on $\bd X$ and isotopic (rel boundary) to the identity.
   600 Then $f$ acts trivially on $\cC(X)$.
   600 Then $f$ acts trivially on $\cC(X)$.
   608 For the moment, assume that our $n$-morphisms are enriched over chain complexes.
   608 For the moment, assume that our $n$-morphisms are enriched over chain complexes.
   609 Let $\Homeo_\bd(X)$ denote homeomorphisms of $X$ which fix $\bd X$ and
   609 Let $\Homeo_\bd(X)$ denote homeomorphisms of $X$ which fix $\bd X$ and
   610 $C_*(\Homeo_\bd(X))$ denote the singular chains on this space.
   610 $C_*(\Homeo_\bd(X))$ denote the singular chains on this space.
   611 
   611 
   612 
   612 
   613 \addtocounter{axiom}{-1}
   613 %\addtocounter{axiom}{-1}
   614 \begin{axiom}[\textup{\textbf{[$A_\infty$ version]}} Families of homeomorphisms act in dimension $n$.]
   614 \begin{axiom}[\textup{\textbf{[$A_\infty$ version]}} Families of homeomorphisms act in dimension $n$.]
   615 For each $n$-ball $X$ and each $c\in \cl{\cC}(\bd X)$ we have a map of chain complexes
   615 For each $n$-ball $X$ and each $c\in \cl{\cC}(\bd X)$ we have a map of chain complexes
   616 \[
   616 \[
   617 	C_*(\Homeo_\bd(X))\ot \cC(X; c) \to \cC(X; c) .
   617 	C_*(\Homeo_\bd(X))\ot \cC(X; c) \to \cC(X; c) .
   618 \]
   618 \]
  1432 In other words, if $M = (B, N)$ then we require only that isotopies are fixed 
  1432 In other words, if $M = (B, N)$ then we require only that isotopies are fixed 
  1433 on $\bd B \setmin N$.
  1433 on $\bd B \setmin N$.
  1434 
  1434 
  1435 For $A_\infty$ modules we require
  1435 For $A_\infty$ modules we require
  1436 
  1436 
  1437 \addtocounter{module-axiom}{-1}
  1437 %\addtocounter{module-axiom}{-1}
  1438 \begin{module-axiom}[\textup{\textbf{[$A_\infty$ version]}} Families of homeomorphisms act]
  1438 \begin{module-axiom}[\textup{\textbf{[$A_\infty$ version]}} Families of homeomorphisms act]
  1439 For each marked $n$-ball $M$ and each $c\in \cM(\bd M)$ we have a map of chain complexes
  1439 For each marked $n$-ball $M$ and each $c\in \cM(\bd M)$ we have a map of chain complexes
  1440 \[
  1440 \[
  1441 	C_*(\Homeo_\bd(M))\ot \cM(M; c) \to \cM(M; c) .
  1441 	C_*(\Homeo_\bd(M))\ot \cM(M; c) \to \cM(M; c) .
  1442 \]
  1442 \]