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Hailie Mathieson

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

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  • Member for 8 years, 11 months
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  • Last seen Nov 13 '18 at 21:25

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27 Examples proving why the tensor product does not distribute over direct products. Mar 11 '12
12 Why is it that $\det(\phi-x\text{id})=\sum_{i=0}^n (-1)^ic_ix^i$? Mar 24 '12
12 If $\operatorname{Hom}(X,-)$ and $\operatorname{Hom}(Y,-)$ are isomorphic, why are $X$ and $Y$ isomorphic? Mar 9 '14
10 Center of Weyl algebra over a field of characterstic $0$? Apr 9 '12
8 Existence of irreducible polynomial of arbitrary degree over finite field without use of primitive element theorem? Jan 27 '13
7 Why is the kernel of this strange polynomial homomorphism what it is? Apr 28 '12
7 Is this quotient ring $\mathbb{C}[z_{ij}]/\ker\phi$ integrally closed? May 1 '12
6 Do $T$-invariant subspaces necessarily have a $T$-invariant complement? Dec 14 '12
6 Why does $(2/p)=\prod_{k=1}^{(p-1)/2}2\cos\left(\frac{2\pi k}{p}\right)$? Jan 8 '13
6 If $a^m=b^m$ and $a^n=b^n$ for $(m,n)=1$, does $a=b$? [duplicate] Jun 25 '12
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