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| bio | website | researchinpractice.wordpress.… |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 1 year, 10 months |
| seen | May 14 at 7:05 | |
| stats | profile views | 606 |
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May 3 |
comment |
Tricky contour integral @Sasha = +1, btw. Thanks so much for this answer. |
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May 3 |
revised |
Solve equations in a field with characteristic p. added clarification to the point about quadratic reciprocity |
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May 2 |
revised |
Class group of $k[x,y,z,w]/(xy-zw)$ deleted the typo that $0\rightarrow \mathbb{Z}$ is exact |
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May 2 |
revised |
Solve equations in a field with characteristic p. fixed typo |
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May 2 |
awarded | Nice Question |
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May 2 |
answered | Solve equations in a field with characteristic p. |
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May 2 |
asked | Class group of $k[x,y,z,w]/(xy-zw)$ |
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Apr 30 |
accepted | Looking for a “prime-ish” family of subsets |
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Apr 25 |
comment |
Where do I start with self learning linear algebra I second the recommendation of Artin, Algebra. I learned linear algebra (very well) from self-studying this book. (I had some previous knowledge of matrix mechanics but no rigorous or theoretical linear algebra knowledge before I picked it up.) |
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Apr 25 |
answered | Proof That $1=0$ — Why is it False? |
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Apr 24 |
awarded | Enlightened |
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Apr 24 |
awarded | Nice Answer |
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Apr 18 |
comment |
Where is the calculation hiding in this proof about how $p$ splits in $\mathbb{Q}(\zeta_n)$? Yes, he had already proved non-ramification a different way based on the discriminant, which is why I was comfortable depending on that for the argument. By the way, your answer here is just the kind of thing I was looking for! Thanks. (Accepted and +1) |
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Apr 18 |
accepted | Where is the calculation hiding in this proof about how $p$ splits in $\mathbb{Q}(\zeta_n)$? |
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Apr 17 |
comment |
Field extension of $\mathbb Q$ of degree 2 Hint: quadratic formula. |
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Apr 16 |
revised |
Plane rotation homomorphism added covering-spaces tag |
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Apr 16 |
answered | Plane rotation homomorphism |
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Apr 16 |
comment |
Reality check: $\mathcal{O}_{\mathbb{P}_\mathbb{R}^1}(1)$ and $\mathcal{O}_{\mathbb{P}_\mathbb{R}^1}(-1)$ are both mobius strips? Thanks! The linked question now answers this one. |
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Apr 16 |
comment |
Where is the calculation hiding in this proof about how $p$ splits in $\mathbb{Q}(\zeta_n)$? Thanks! What's the idea for using the identity to show that $p$ is unramified? |
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Apr 16 |
asked | Local vs. global in the definition of a sheaf |
