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Results tagged with examples
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user 5101
For questions requesting examples of a certain structure or phenomenon
3
votes
smooth affine surfaces over algebraically closed fields with trivial l-torsion of the Brauer...
I think the following should work, but I have not checked all the details.
Let $k$ be an algebraically closed field and let $\ell$ be coprime to the characteristic of $k$. Then the Grothendieck purit …
- 21.4k
13
votes
What is the smallest and "best" 27 lines configuration? And what is its symmetry group?
It is the Fermat cubic surface over $\mathbb{F}_4$ or (if you prefer $\mathbb{F}_p$) over $\mathbb{F}_7$.
There are quite a few papers on this topic. Firstly in [1] Swinnerton-Dyer showed (amongst oth …
- 21.4k