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Jul
24
comment Existence of functions on finite sets with specific propertise
I suppose propertise is sort of like expertise. I like it! Perhaps the "propertise" of an object is not just a miscellaneous list of properties, but the gestalt of all relevant properties taken together.
Jul
20
comment Natural topologies for the space of rational functions
It seems in this topology, you cannot change the degree when you converge. Constants can converge to constants. Degree one maps (like $z/(z-1/n)$) cannot converge to a constant (like $1$).
Jul
19
revised Natural topologies for the space of rational functions
deleted 96 characters in body
Jul
19
answered Natural topologies for the space of rational functions
Jul
14
comment Eliminating Gibbs phenomenon, and approximating with jumping functions in Fourier Analysis : An attempt and a question in this regard
Aside: the man's name was Gibbs, not Gibb. So use any of these: "The Gibbs phenomenon" ... "Gibbs' phenomenon" ... "Gibbs' phenomenon".
Jul
14
answered Measurability and Axiom of choice
Jul
13
comment recursively enumerable sets
Joel: fixed. User, now that it is fixed can you understand it?
Jul
13
revised recursively enumerable sets
edited body
Jul
13
answered recursively enumerable sets
Jul
7
comment Proof that derivative of Hurwitz Zeta by the first argument is not expressable in terms of Hurwitz Zeta
Definition... $$\zeta(s,q) := \sum_{n=0}^\infty\frac{1}{(q+n)^s}$$ with analytic continuation. en.wikipedia.org/wiki/Hurwitz_zeta_function
Jul
7
awarded  Enlightened
Jul
6
awarded  Nice Answer
Jul
6
answered On Cantor sets every map is $C^{\infty}$
Jul
5
revised What are some mathematical sculptures?
edited body
Jul
5
comment What are some mathematical sculptures?
@martin I was responding to the "made by computer" comment.
Jul
4
comment Integrals involving the Tricomi hypergeometric function
I checked Gradshteyn & Ryzhik and did not find them.
Jul
4
answered Integrals involving the Tricomi hypergeometric function
Jul
1
awarded  nt.number-theory
Jul
1
comment What conditions imply that a function over $\mathbb{Z}$ is a polynomial?
Only defined on the positive integers? Take Anthony's suggestion, and convert to this: take the difference finitely many times, and get identically zero. The difference $\Delta F$ of $F$ is: $\Delta F(n) = F(n+1)-F(n)$.
Jun
27
comment How to explain the concentration-of-measure phenomenon intuitively?
Dimension higher than $3$ is perplexing, that's true. Especially dimension $d \to \infty$ as in this case...