text/deligne.tex
changeset 400 a02a6158f3bd
parent 386 40df54ede7fe
child 402 853376c08d76
equal deleted inserted replaced
399:979fbe9a14e8 400:a02a6158f3bd
   204 				\to \hom(\bc_*(M_0), \bc_*(N_0)) .
   204 				\to \hom(\bc_*(M_0), \bc_*(N_0)) .
   205 \]
   205 \]
   206 The main result of this section is that this chain map extends to the full singular
   206 The main result of this section is that this chain map extends to the full singular
   207 chain complex $C_*(FG^n_{\ol{M}\ol{N}})$.
   207 chain complex $C_*(FG^n_{\ol{M}\ol{N}})$.
   208 
   208 
   209 \begin{prop}
   209 \begin{thm}
   210 \label{prop:deligne}
   210 \label{thm:deligne}
   211 There is a collection of chain maps
   211 There is a collection of chain maps
   212 \[
   212 \[
   213 	C_*(FG^n_{\overline{M}, \overline{N}})\otimes \hom(\bc_*(M_1), \bc_*(N_1))\otimes\cdots\otimes 
   213 	C_*(FG^n_{\overline{M}, \overline{N}})\otimes \hom(\bc_*(M_1), \bc_*(N_1))\otimes\cdots\otimes 
   214 \hom(\bc_*(M_{k}), \bc_*(N_{k})) \to  \hom(\bc_*(M_0), \bc_*(N_0))
   214 \hom(\bc_*(M_{k}), \bc_*(N_{k})) \to  \hom(\bc_*(M_0), \bc_*(N_0))
   215 \]
   215 \]
   216 which satisfy the operad compatibility conditions.
   216 which satisfy the operad compatibility conditions.
   217 On $C_0(FG^n_{\ol{M}\ol{N}})$ this agrees with the chain map $p$ defined above.
   217 On $C_0(FG^n_{\ol{M}\ol{N}})$ this agrees with the chain map $p$ defined above.
   218 When $k=0$, this coincides with the $C_*(\Homeo(M_0\to N_0))$ action of Section \ref{sec:evaluation}.
   218 When $k=0$, this coincides with the $C_*(\Homeo(M_0\to N_0))$ action of Section \ref{sec:evaluation}.
   219 \end{prop}
   219 \end{thm}
   220 
   220 
   221 If, in analogy to Hochschild cochains, we define elements of $\hom(M, N)$
   221 If, in analogy to Hochschild cochains, we define elements of $\hom(M, N)$
   222 to be ``blob cochains", we can summarize the above proposition by saying that the $n$-FG operad acts on
   222 to be ``blob cochains", we can summarize the above proposition by saying that the $n$-FG operad acts on
   223 blob cochains.
   223 blob cochains.
   224 As noted above, the $n$-FG operad contains the little $n{+}1$-ball operad, so this constitutes
   224 As noted above, the $n$-FG operad contains the little $n{+}1$-ball operad, so this constitutes