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Results tagged with smoothness
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user 122492
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Criterion for smooth functions [duplicate]
Let $f:\mathbb{R}→\mathbb{R}$ a real-valued function and $m,n∈\mathbb{N}^∗$ coprime, i.e. greatest common divisor of m and n is 1, and define $f^m:=f\cdot f\cdot\ldots\cdot f.$
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$$f^m,f^n\in …
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