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Aug
26
awarded  Nice Question
Aug
25
reviewed Close Odd prime combinatorics problem
Aug
25
reviewed Close Trivial Graph theory questions
Aug
23
reviewed No Action Needed Show that $\cos^n{\theta}\leq\cos{n\theta},\theta\in[0,\frac{\pi}{2}],n\in]0,1[$.
Aug
23
comment Is the functional equation for $\zeta (s) \left(1-\frac{1}{3^{s-1}}\right)$ known?
Yes, just change $2^{-s}$ to $3^{-s}$ (and $2^{-s-1}$ to $3^{-s-1}$) in the func. equations for $\eta$.
Aug
21
comment The form of the zeta function of an elliptic curve over a finite field
And of course a proof for $y^2=x^3-x$ goes back to Gauss (see e.g. Ireland, Rosen. A Classical Introduction to Modern Number Theory, ch. 8 for the proof)
Aug
21
comment The form of the zeta function of an elliptic curve over a finite field
Well, there is a relatively elementary proof in Silverman. The Arithmetic of Elliptic Curves
Aug
21
reviewed No Action Needed The form of the zeta function of an elliptic curve over a finite field
Aug
21
reviewed Reject Dirichlet's Divisor Problem
Aug
21
reviewed Reject Graph Path Length Problem
Aug
21
reviewed Reject Existence of a $\theta$ - Taylor Expansion Problem
Aug
21
reviewed Looks OK Proving that $\sin x > \frac{(\pi^{2}-x^{2})x}{\pi^{2}+x^{2}}$
Aug
21
reviewed Reject How do I count the subsets of a set whose number of elements is divisible by 3? 4?
Aug
18
reviewed Close How to show $\int_{0}^{\infty}e^{-x}x^{-1} dx = \infty$
Aug
16
reviewed Looks OK Help finding the limit of this series $\frac{1}{4} + \frac{1}{8} + \frac{1}{16} + \frac{1}{32} + \cdots$
Aug
15
reviewed Looks OK Does square difference prove that 1 = 2?
Aug
15
reviewed No Action Needed Why do we need to check for more than $\frac{\infty}{\infty}$ or $\frac{0}{0}$ when applying L'Hospital?
Aug
15
reviewed Reviewed Separating family of functions for measures
Aug
14
reviewed No Action Needed How do I integrate (1/polynomial) without using partial fractions?
Aug
14
reviewed No Action Needed Extension of Pontryagin's principle