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Pierre-Yves Gaillard

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35 Simultaneous diagonalization Aug 9 '11
33 Why is the difference of distinct roots of irreducible $f(x)\in\mathbb{Q}[x]$ never rational? Dec 1 '11
33 Examples of patterns that eventually fail Feb 21 '12
28 How to show that $\det(AB) =\det(A) \det(B)$? Aug 28 '11
23 About a paper of Zermelo Aug 1 '11
23 How did Hermite calculate $e^{\pi\sqrt{163}}$ in 1859? Jan 24 '12
21 Did Zariski really define the Zariski topology on the prime spectrum of a ring? Aug 3 '11
21 What is the origin of the expression “Yoneda Lemma”? Jul 25 '11
19 vector spaces whose algebra of endomorphisms is generated by its idempotents Jul 25 '14
18 An integrable and periodic function $f(x)$ satisfies $\int_{0}^{T}f(x)dx=\int_{a}^{a+T}f(x)dx$. Dec 26 '11
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