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237 Finally, define |
237 Finally, define |
238 \[ |
238 \[ |
239 e(p\ot b) \deq x' \bullet p''(b'') . |
239 e(p\ot b) \deq x' \bullet p''(b'') . |
240 \] |
240 \] |
241 |
241 |
242 Note that above we are essentially using the method of acyclic models. |
242 Note that above we are essentially using the method of acyclic models \nn{\S \ref{sec:moam}}. |
243 For each generator $p\ot b$ we specify the acyclic (in positive degrees) |
243 For each generator $p\ot b$ we specify the acyclic (in positive degrees) |
244 target complex $\bc_*(p(V)) \bullet p''(b'')$. |
244 target complex $\bc_*(p(V)) \bullet p''(b'')$. |
245 |
245 |
246 The definition of $e: G_*^{i,m} \to \bc_*(X)$ depends on two sets of choices: |
246 The definition of $e: G_*^{i,m} \to \bc_*(X)$ depends on two sets of choices: |
247 The choice of neighborhoods $V$ and the choice of inverse boundaries $x'$. |
247 The choice of neighborhoods $V$ and the choice of inverse boundaries $x'$. |