Grigory M
Reputation
11,615
365/400 score
 Sep 23 reviewed Close Please help me find $\int e^{-x^2} dx.$ Sep 21 revised Which numbers have square roots in $\mathbb Q(\phi)$? old title was misleading Sep 21 reviewed Close Proof that absolute value of supremum equals suprememum of absolute value Sep 19 comment A three variable binomial coefficient identity @darij why, I already do (see par. 3 of 'Comments and thoughts' there) Sep 13 reviewed No Action Needed Permutations of word 'mathematics' Sep 13 reviewed Close Integrate $\int\dfrac{x \cos x+1}{\sqrt{2x^{3}e^{\sin x}+x^{2}}}dx$ Sep 12 comment Is any 2$m$-dimensional manifold almost complex? locally — yes, globally — no Sep 11 reviewed Reviewed Derivative of the Square Root of X Sep 9 awarded Reviewer Sep 9 reviewed Reviewed Find all complex numbers which are equal to (one of) their own roots of order $7$ Aug 30 reviewed Looks OK When is the geometric Picard group $Pic(X_{\overline{K}})$ of finite type? Aug 30 reviewed Leave Closed Existence of approximating simple function Aug 28 reviewed Leave Closed How can I solve $\sum_{n=1}^{\infty} \frac{8}{(4n-1)(4n-3)}$ step by step? Aug 28 reviewed Reviewed If limit of $\lim_{x\to0}(\frac{sin2x}{x^3} + \frac{a}{x^2} + b)$ is zero, then find a+b? Aug 27 reviewed Close Find the sum of the roots of the floor equation Aug 27 reviewed Close Calculus $\int_0^{+\infty}\frac{\sin^2x}x\mathrm dx$ Aug 26 reviewed Close How to find stationary points of two-variable cubic Aug 26 reviewed Close How to solve this using set theory? Aug 26 reviewed Close Partial Differential Equation Formation (Arbitrary Functions) Aug 26 awarded Nice Question