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Lipschitz function

From Encyclopedia of Mathematics
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Let function $f:[a,b]\to \mathbb R$ such that for some constant M and for all $x,y\in [a,b]$ \begin{equation}\label{eq:1} |f(x)-f(y)| \leq M|x-y|. \end{equation} Then function $f$ is called Lipschitz on $[a,b]$ or one writes $f\in \operatorname{Lip}_M[a,b]$.

How to Cite This Entry:
Lipschitz function. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Lipschitz_function&oldid=28813