Timeline for Is it true that every projective curve is a union of two affine curves?
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Nov 17, 2012 at 23:52 | comment | added | algori | Qing Liu -- yes, indeed. By the way, slightly generalizing the argument one sees that a projective variety $X$ can be covered by $\dim X+1$ affine sets. | |
Nov 17, 2012 at 22:09 | comment | added | Qing Liu | Very nice ! Over a finite field, one can use hypersurfaces instead of hyperplanes. | |
Nov 17, 2012 at 19:15 | history | answered | algori | CC BY-SA 3.0 |