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Mathematics
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le duc quang

A child who pick ups a few of small stones everyday hoping for understanding the far away ocean

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  • Vietnam
  • Member for 6 years, 9 months
  • 776 profile views
  • Last seen Apr 12 at 10:23

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Top posts (135) All Questions Answers | Votes Newest

29 Prove that the polynomial $(x-1)(x-2)\cdots(x-n) + 1$, $ n\ge1 $, $ n\ne4 $ is irreducible over $\mathbb Z$ Sep 24 '13
16 Prove that the polynomial $(x-1)(x-2)\cdots(x-n) + 1$, $ n\ge1 $, $ n\ne4 $ is irreducible over $\mathbb Z$ Sep 25 '13
10 about a ninth-grade geometry problem Jun 1 '16
10 number of subgroups index $p$ equals number of subgroups order $p$ Jun 7 '13
8 What is the “order” of an automorphism of a group? Sep 1 '12
8 Proving inner measure equal to outer measure if a set is measurable Jul 3 '15
7 Prove that $(X\times Y)\setminus (A\times B)$ is connected Oct 15 '12
6 Evaluate $\int_0^2 \sqrt[3]{x^2 + 2x - 1} \, dx$ May 12 '15
5 Prove that $\oint_{|z|=r} {dz \over P(z)} = 0$ Apr 17 '16
5 Prove that two metrics are equivalent May 1 '16
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