Unsmoothable diffeomorphisms on higher dimensional manifolds

Harrison, Jenny

doi:10.1090/S0002-9939-1979-0516473-9

Unsmoothable diffeomorphisms on higher dimensional manifolds
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Proc. Amer. Math. Soc. 73 (1979), 249-255 Request permission

Abstract:

Examples of ${C^r}$ diffeomorphisms not topologically conjugate to ${C^s}$ diffeomorphisms $(s > r)$ are constructed on manifolds of dimension $\ne 1,4$.

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