Alex Nelson
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 1d suggested rejected edit on Proving that a function grows faster than another Aug 29 comment What are super-translations? Sabine Hoffsteder has some references to the literature on her blogpost about Hawking's recent work, which probably will lead you to the right direction. (Try searching for "BMS Supertranslations"; also see chapter 11 of Wald's General Relativity.) Aug 7 comment How do you calculate $\lim_{z\to0} \frac{\bar{z}^2}{z}$? More explicitly $|\bar{z}^{2}/z|=|\bar{z}|^{2}/|z|=|z|^{2}/|z|=|z|$. Jul 25 answered Power serie of $f'/f$ Jun 14 comment which branch of computer science is most math intensive? Automated theorem proving will involve a lot of logic and foundations of math, but I don't know if it's what you're after... May 18 awarded Yearling Jan 25 comment For what values is my integral diverging or converging? You ought to simplify $\alpha_{1}/2$ as 1 everywhere...it cleans things up a bit... Jan 25 comment Simplify the sum $\sum_{k=1}^{\infty} (\frac{1}{2})^kk$ What's $\sum_{n=0}x^{n}$ converge to? What's its derivative? Dec 8 awarded Caucus Dec 8 comment Is it possible to create division via Set Theory? You can formally construct the integers with an equivalence relationship atop the natural numbers, then construct the rationals using the integers you've just constructed. Sep 30 awarded Explainer Sep 29 comment Geometric Interpretation of QFT Scattering Integrals @Dave, the "generalization to $n$ dimensions" section discusses $\int_{\mathbf{R}^n} \delta(g(\mathbf{x}))\, f(g(\mathbf{x}))\, |\det g'(\mathbf{x})|\, d\mathbf{x} = \int_{g(\mathbf{R}^n)} \delta(\mathbf{u}) f(\mathbf{u})\,d\mathbf{u}$ and $\int_{\mathbf{R}^n} f(\mathbf{x}) \, \delta(g(\mathbf{x})) \, d\mathbf{x} = \int_{g^{-1}(0)}\frac{f(\mathbf{x})}{|\mathbf{\nabla}g|}\,d\sigma(\mathbf{x})$ Sep 26 comment Riemann Zeta of 1/2 $\zeta(\frac{1}{2})$ For your first equation, why is it true for $x>1$, but you conclude a result for $x>0$? [I can't immediately see it, so even if you say something like "Equation x justifies it" would be appreciated :)] Sep 24 awarded Autobiographer Aug 14 comment Is Category Theory geometric? This book review claims "in this book his principal objective is to establish the claim that category theory is a generalization of Felix Klein's Erlangen program." So, what the author means by "geometrical" should probably be understood in that light... Jul 27 comment How to I write $\frac{7^{2n}}{4^{3n}}$ as a geometric series? Wait, you are trying to consider $\sum(7/4)^{2n}$? That would diverge badly... Jul 20 comment An English question for a logical term Well, be fair, the three google results are: this thread, the other thread you linked to, and a paper which has the exact phrase "...depend only on the presence, in the tuple, of implications...". It looks like no one uses the term "tuple of implications", per se. Jun 17 comment How to compute this integral involving sech? I think you might want to consider the stationary phase approximation...or method of steepest descent, whichever (I always get them confused!). Jun 17 comment How to compute this integral involving sech? What have you tried? (And is $\epsilon$ "small and positive"?) Jun 17 revised How to compute this integral involving sech? Updated TeX formatting slightly