Fredrik Meyer

Oslo, Norway

cube.fredrikmeyer.net

Age: 24

Master in Mathematics at the University of Oslo. Spring 2011 spent at UIUC. Will write a master's thesis about Hibi rings, Grassmannians/flag varieties, monomials and stuff like that.

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What is the Tor functor?

commutative-algebra modules homological-algebra derived-functors asked Jan 4 '11 at 13:14

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21 votes

Famous papers in algebraic geometry

reference-request algebraic-geometry big-list asked Jun 20 '12 at 21:21

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12 votes

In an additive category, why is finite products the same as finite coproducts?

category-theory asked Mar 5 '11 at 22:24

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12 votes

What does $R-\mathrm{Mod}$ tell us about $R$?

ring-theory modules asked Mar 24 '12 at 22:41

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11 votes

Why is every abelian group the direct limit of its finitely generated subgroups?

category-theory abelian-groups asked Jan 31 '11 at 0:32

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10 votes

What is so special about negative numbers $m$, $\mathbb{Z}[\sqrt{m}]$?

homework algebraic-number-theory asked Feb 21 '11 at 2:07

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7 votes

When does locally irreducible imply irreducible?

algebraic-geometry commutative-algebra asked Jan 7 at 12:17

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6 votes

Irrationality proofs not by contradiction

irrational-numbers asked Feb 5 '11 at 18:55

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6 votes

If $\alpha \in K$, prove that $\alpha \in \mathcal{O}_K$ if and only if the trace and the norm are integral

homework algebraic-number-theory asked Feb 13 '11 at 2:43

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6 votes

What is the image of the map $\hom(V,V) \to \hom(\wedge^k V,\wedge^k V)$?

algebraic-geometry commutative-algebra exterior-algebra asked Mar 15 at 14:31

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Top Answers

Why is $Q[\pi]$ not a field?

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How to pick a thesis advisor?

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Showing $1,e^{x}$ and $\sin{x}$ are linearly independent in $\mathcal{C}[0,1]$

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What is the result of infinity minus infinity?

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What's the goal of mathematics?

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Classical texts that should not be missing from any shelf

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Twice as much vs Two times as much vs Double

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Prove that $a^p = e$ in any non-cyclic group of order $p^2$

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How does intuition fail for higher dimensions?

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Motivation for linear transformations

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Are Disjoint Set Assertions Commutative?

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Showing that a set X with a trivial topology is not metrizable

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Reference request: introduction to commutative algebra

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What are stalks of Spec $Z/(60)$?

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The way into set theory

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Good books on Philosophy of Mathematics

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Number of ways a natural number can be written as sum of smaller natural number

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Is there any field of characteristic 4 or any other composite number?

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Let $G$ a group. Let $x\in G$. Assume that for every $y\in G, xyx=y^3$. Prove that $x^2=e$ and $y^8=e$ for all $y\in G$.

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Motivating implications of the axiom of choice?

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The limit of $z\cdot\overline{z}$ as $z\to i$

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$V$ is isomorphic to $V^{\ast\ast}$, the double dual space of $V$.

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Prove that there is at least one real solution to the equation…

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Question on sheafification of a presheaf

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