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user 4213
This tag is to be used only when re-tagging highly(!) off-topic questions where none of the actual tags would make sense; all actual tags the questioner has used are removed and something is needed to have some tag, which is enforced by the software, so this tag is used. However note that this tag is also used in the process of moderators deleting tags. Thus a question having this tag does most of the time not mean that somebody found it off-topic.
6
votes
Accepted
Inf of a mutivariate function
This is discussed briefly as a generalization of Shapiro's cyclic sum
inequality by J. Michael Steele in his book
The Cauchy-Schwarz Master Class.
He remarks that (1.) holds for $n\ge25$ and refers to …
- 20.8k
15
votes
Is it true that all the "irrational power" functions are almost polynomial ?
There is an "iterated" version of the mean value theorem which states that for
a smooth enough function $f$ on an interval that $\Delta^k f(x)=f^{(k)}(\xi)$
where $\xi$ is between $x$ and $x+k$. This …
- 20.8k