Toward a precise smoothness hypothesis in Sard’s theorem

Toward a precise smoothness hypothesis in Sard’s theorem
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by S. M. Bates PDF

Proc. Amer. Math. Soc. 117 (1993), 279-283 Request permission

The familiar ${{\mathbf {C}}^k}$ smoothness hypothesis in the Morse-Sard Theorem can be weakened to ${{\mathbf {C}}^{k - 1,1}}$.

References

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