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gžd15

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 5 years, 11 months
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  • Last seen Dec 9 '20 at 2:40

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13 least common multiple of $\{1,2,…,n\}$ is bigger than $2^{n-1}$ Nov 11 '15
6 How to explain combinatorial identities? Jul 10 '16
5 Extreme values of a two-variable polynomial May 29 '15
5 How to rationalize denominator? Nov 19 '15
5 Convex function on geodesics in hyperbolic plane Jun 20 '18
4 Find all matrices which commute with a given matrix Nov 26 '17
4 Prove a compact Hausdorff space with a group structure is a topological group Oct 25 '17
4 Is there a smooth function which behaves like $x^n\sin(\frac{1}{x})$? Sep 20 '16
3 approximate irrational numbers by rational numbers Jun 17 '16
3 Is the cuspidal cubic $\{y^2 = x^3\} \subset \Bbb R^2$ not smooth? Apr 27 '16
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