Example · Undergraduate

Terms

TermThis exampleWhy
Holder continuous ✓ The Cantor function is Hölder continuous with $\alpha = \log 2 / \log 3$, and so it is uniformly continuous.
uniformly continuous ✓ The Cantor function is uniformly continuous because it is continuous on the compact interval $[0, 1]$.
continuous ✓ The Cantor function is continuous, and uniformly continuous because $[0, 1]$ is compact.
Lipschitz continuous ✗ The Cantor function is not Lipschitz continuous, because it rises by $2^{-n}$ over intervals of length $3^{-n}$, so its slopes are unbounded.
absolutely continuous ✗ The Cantor function is not absolutely continuous: it rises from $0$ to $1$, but its derivative is $0$ almost everywhere, so it is not the integral of its derivative.
continuously differentiable ✗

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