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awarded  Nice Answer 
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awarded  Nice Answer 
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Which polynomial's roots are its coefficients?
@RobertIsrael Thanks, this is what I meant. It is now corrected. 
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revised 
Which polynomial's roots are its coefficients?
corrected two typos 
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answered  Partitioning ${\cal P}([[1,n]])$ 
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answered  Which polynomial's roots are its coefficients? 
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awarded  Nice Answer 
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revised 
Negative coefficient in an almost cyclotomic polynomial
fixed typo 
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comment 
A lower bound for orthogonal partial circulant matrices
It is unknown whether there exists a circulant Hadamard matrix of order $>4$, so getting a good upper bound in general will not be easy. 
Aug
29 
comment 
Properties of Coefficients of Order Polynomials
If $P$ is an $n$element chain then $\Omega_P(n)=\Theta(4^n/\sqrt{n})$. 
Aug
28 
answered  Important formulas in Combinatorics 
Aug
27 
answered  Important formulas in Combinatorics 
Aug
27 
comment 
Properties of Coefficients of Order Polynomials
I would say "various sources $\dots$ show $\dots$" rather than "suggest." I don't understand your question about $\Theta(a_nk^n)$. Are you fixing $P$ and letting $k\to\infty$? Every polynomial $f(k)$ of degree $n$ satisfies $f(k)=\Theta(k^n)$. 
Aug
14 
comment 
Most computationally efficient LittlewoodRichardson rule
For computing all the terms in the expansion of $s_\lambda s_\mu$, one method is to work with a sufficiently large but finite number of variables, express the product as a linear combination of Schur functions with unknown coefficients, write the Schur functions as bialternants (quotients of determinants), and specialize the variables to real numbers sufficiently generically to be able solve the resulting system of linear equations for the unknown coefficients. I believe that John Stembridge uses this technique for some of his SF computations. 
Jul
29 
comment 
Distributing points evenly on a sphere
For a couple of related papers, see arXiv:math.MG/0611451 and arXiv:math/0607446. 
Jul
27 
comment 
A question on permutations
@Turbo I have added some more details to my argument. 
Jul
27 
revised 
A question on permutations
more detailed argument 
Jul
27 
awarded  Nice Question 
Jul
27 
answered  A question on permutations 
Jul
26 
revised 
An algebraic strengthening of the Saturation Conjecture
fixed incorrect terminology 