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| bio | website | |
|---|---|---|
| location | Oslo, Norway | |
| age | 24 | |
| visits | member for | 2 years, 9 months |
| seen | May 13 at 10:50 | |
| stats | profile views | 131 |
Hello! I am a master student in algebraic topology at the University of Oslo.
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Feb 12 |
revised |
Confusion over notation in a book on the mathematics of QFT by Faria-Melo added 2 characters in body |
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Feb 12 |
revised |
Confusion over notation in a book on the mathematics of QFT by Faria-Melo "what the symbols are meant to mean" may sound a bit defiant, which is not the case and not my intention :-) |
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Feb 11 |
asked | Confusion over notation in a book on the mathematics of QFT by Faria-Melo |
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Feb 11 |
answered | Confusion over notation in a book on the mathematics of QFT by Faria-Melo |
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Nov 22 |
comment |
What does matrix multiplication actually mean? @lhf When you extend multiplication to fractions or the real line like you do, I'm sure you agree that the intuitive 'counting' operation of multiplying integers extends to the intuitive operation of 'scaling'. |
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Nov 22 |
revised |
What does matrix multiplication actually mean? added 1308 characters in body |
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Nov 22 |
revised |
What does matrix multiplication actually mean? added 1308 characters in body |
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Nov 22 |
revised |
What does matrix multiplication actually mean? added 118 characters in body |
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Jul 28 |
awarded | Yearling |
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Jun 8 |
awarded | Caucus |
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May 31 |
comment |
Prove $\mathbb{Z}$ is not a vector space over a field Nice solution! Getting rid of the simplest (characteristic $2$) case as neatly as possible, and then using this directly to support the initial intuition: "fields have fractions." Om nom chomp. |
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May 2 |
comment |
Why is one “$\infty$” number enough for complex numbers? I see your point of view as well; there are apparently many angles on a somewhat open question. My approach was to point out that the dichotomy between the case of $\mathbb{R}$ and $\mathbb{C}$ implied by the word 'instead' could be considered somewhat artificial o_O |
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Apr 29 |
accepted | What is the universal property of the tangent bundle of a smooth manifold? |
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Apr 14 |
comment |
Which functor does the projective space represent? This got way clearer with time. Thanks again :-) |
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Apr 14 |
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Which functor does the projective space represent? Ah, the condition that the $r_i$ generate $R$ got much clearer when considering that this means that they do not all vanish at any point. This plugs nicely into thinking about projective schemes as looking for strictly non-trivial solutions to homogeneous equations. Neat :-) |
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Mar 17 |
accepted | Which functor does the projective space represent? |
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Mar 17 |
comment |
Which functor does the projective space represent? Thank you! Another good answer. Hard to know which one to pick, but I think I'll go for this one because it is closer to the generality I asked for. I also found this treated in a set of notes by Strickland on formal schemes. |
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Mar 16 |
comment |
Which functor does the projective space represent? Thank you! I agree charts might not be all too great for understanding projective spaces, but the first thing I really understood and liked was the projective line, patched together by pieces of $k[t]$. It makes it clear to me why a meromorphic function on $X$ is the same thing as a morphism $X\to\mathbb{P}^1$. This complements nicely the notion of a regular function as a morphism $X\to\mathbb{A}^1$. If I was able to see from the definition of $\mathbb{P}^I$, that this was the case I would be every happy. At least you've told me what I need to stare at until it makes sense :-) |
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Mar 16 |
revised |
Which functor does the projective space represent? edited title |
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Mar 16 |
asked | Which functor does the projective space represent? |
