Joe Bebel
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 Jan 7 comment approximate stationary distributions of a doubly stochastic matrix and its supports Is it obvious what is meant by "the Birkhoff decomposition" in this question? Because the decomposition of a doubly stochastic matrix into permutation matrices is not necessarily unique. So is your question "for all decompositions ..." or "does there exist a decomposition such that ..."? Dec 16 asked Nonclassical polynomials, circles, and groups Apr 20 awarded Revival Apr 20 awarded Yearling Mar 21 revised Polynomial degree comparison of Nullstellensatz and Positivstellensatz over real algebraic sets edited tags Mar 21 asked Polynomial degree comparison of Nullstellensatz and Positivstellensatz over real algebraic sets Mar 21 awarded Editor Mar 21 revised Constructing hard inputs for the complement of bounded halting deleted 4 characters in body Mar 21 answered Constructing hard inputs for the complement of bounded halting Mar 17 awarded Autobiographer Jul 8 comment Iwasawa logarithm and analytic continuation Thanks. Is there any notion of singularity or complete analytic function at all? For example one could take the the polynomial $y^2 - x$ and (as far as I can tell) use Hensel's lemma to expand a power series $p(x) = \sum c_i (x-\alpha)^i$ around every point $\alpha \in \mathbb{C}_p - \{0\}$, in fact, a pair of power series, such that $(x,p(x))$ is identically zero on $y^2 - x$ It seems reasonable to assume that such power series bear some relationship to each other, that an arbitrary pair of power series do not. Jul 8 accepted Iwasawa logarithm and analytic continuation Jun 28 asked Iwasawa logarithm and analytic continuation May 26 awarded Teacher May 26 answered Why are smooth numbers called “smooth”? Feb 10 awarded Scholar Feb 10 comment Concentration bounds for sums of random variables of permutations Thanks, I didn't think about exchangeability when I considered the problem. Feb 10 comment Concentration bounds for sums of random variables of permutations Thanks, I think that set of notes is exactly the sort of thing I was looking for. Feb 10 accepted Concentration bounds for sums of random variables of permutations Jan 29 awarded Supporter