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Jakob
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smooth manifold vs. exceptional inverse image

A well-known theorem in topology says that for a smooth manifold $M$ of dimension $n$ the map $f: M \rightarrow point$ satisfies $$f^! \mathbf R = \mathbf R[n]$$ Here $\mathbf R$ is the constant sheaf.

Here is my question: is there any kind of converse statement to this?

Jakob
  • 2k
  • 12
  • 18