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For questions about mathematical notation, i.e. the symbols used to represent mathematical objects and operations.
10
votes
Notation for $\log \log \cdots \log n$?
It conforms to the usual notation for functional iterations and there is no room for confusion with either taking powers or using different bases, e.g. $(\log_2^{(n)}X)^k$. …
1
vote
0
answers
102
views
Are there standard short notations for ascending and descending cyclic permutations?
Ideally, the notation will also be well amenable to light algebraic operations within the permutation (e.g. adding an integer or multiplication by an integer). … Thus my question:
Is there a common or at least a somewhat popular short notation for ascending and descending cyclic permutations of consecutive integers? …
2
votes
1
answer
284
views
Notation and reference for polynomials with coefficients not commuting with the indeterminates
(Q1) Is there a standard notation for these rings?
Currently I'm using the notation $R\rangle X\langle$, resp. … But it looks... odd and I have no desire to introduce possibly non-standard notation. …
0
votes
0
answers
90
views
Is there a good or commonly accepted short notation for the set of differentiable, but not n...
Every once in a while I find myself in need of some short notation for the set of differentiable, but not continuously differentiable maps, say, $X \to Y$. … But is there somewhat accepted / standard notation for the set between $C^0$ and $C^1$ of differentiable, but not necessarily continuously so maps? …