text/hochschild.tex
changeset 220 d31a9c505f29
parent 219 7e9a7b9605d3
child 221 77b0cdeb0fcd
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   189 Note also that in $\bc_*(S^1)$ (away from $J_*$) 
   189 Note also that in $\bc_*(S^1)$ (away from $J_*$) 
   190 a blob diagram could have multiple (nested) blobs whose
   190 a blob diagram could have multiple (nested) blobs whose
   191 boundaries contain *, on both the right and left of *.
   191 boundaries contain *, on both the right and left of *.
   192 
   192 
   193 We claim that $J_*$ is homotopy equivalent to $\bc_*(S^1)$.
   193 We claim that $J_*$ is homotopy equivalent to $\bc_*(S^1)$.
   194 Let $F_*^\ep \sub \bc_*(S^1)$ be the subcomplex where there there are no labeled
   194 Let $F_*^\ep \sub \bc_*(S^1)$ be the subcomplex where either
   195 points within distance $\ep$ of * on the right.
   195 (a) the point * is not the left boundary of any blob or
   196 (This includes * itself.)
   196 (b) there are no labeled points to the right of * within distance $\ep$.
       
   197 Note that all blob diagrams are in $F_*^\ep$ for $\ep$ sufficiently small.
       
   198 
       
   199 
   197 \nn{...}
   200 \nn{...}
   198 
   201 
   199 
   202 
   200 
   203 
   201 We want to define a homotopy inverse $s: \bc_*(S^1) \to K_*(C)$ to the inclusion.
   204 We want to define a homotopy inverse $s: \bc_*(S^1) \to K_*(C)$ to the inclusion.