Sard's Theorem

The set of "critical values" of a map u:R^n->R^n of map class C^1 has Lebesgue measure 0 in R^n.

See also

Lebesgue Measure, Map Class, Transversal Intersection

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References

Iyanaga, S. and Kawada, Y. (Eds.). Encyclopedic Dictionary of Mathematics. Cambridge, MA: MIT Press, p. 682, 1980.

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Cite this as:

Weisstein, Eric W. "Sard's Theorem." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/SardsTheorem.html

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