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158 Let $R_i = B\setmin \pi(D_i)$. |
158 Let $R_i = B\setmin \pi(D_i)$. |
159 Let $f_i = \rm{id}$ for all $i$. |
159 Let $f_i = \rm{id}$ for all $i$. |
160 We have now defined a map from the little $n{+}1$-balls operad to the $n$-SC operad, |
160 We have now defined a map from the little $n{+}1$-balls operad to the $n$-SC operad, |
161 with contractible fibers. |
161 with contractible fibers. |
162 (The fibers correspond to moving the $D_i$'s in the $x_{n+1}$ |
162 (The fibers correspond to moving the $D_i$'s in the $x_{n+1}$ |
163 direction without changing their ordering.) |
163 direction while keeping them disjoint.) |
164 %\nn{issue: we've described this by varying the $R_i$'s, but above we emphasize varying the $f_i$'s. |
164 %\nn{issue: we've described this by varying the $R_i$'s, but above we emphasize varying the $f_i$'s. |
165 %does this need more explanation?} |
165 %does this need more explanation?} |
166 |
166 |
167 Another familiar subspace of the $n$-SC operad is $\Homeo(M_0\to N_0)$, which corresponds to |
167 Another familiar subspace of the $n$-SC operad is $\Homeo(M_0\to N_0)$, which corresponds to |
168 case $k=0$ (no holes). |
168 case $k=0$ (no holes). |