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Questions
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What is the Euler characteristic of a Hilbert scheme of points of a singular algebraic curve?

sep 23 10 at 16:17 Vivek Shende 3,201●8●22

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Reference for Grothendieck-Riemann-Roch for $Ext$.

jun 18 10 at 21:47 Sasha 10.1k●1●7●17

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Is there an Abelian surface such that every effective divisor is ample? (Together with a boil down version to a question in Complex Lie group theory)

may 26 10 at 3:11 David Speyer 56.3k●3●103●242

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Some questions on the intersection theory on a Hilbert scheme of points of a surface.

feb 18 10 at 15:09 James O 355●1●9

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When is the canonical divisor of an algebraic surface smooth?

jan 18 10 at 23:37 VA 8,260●22●44