64

Questions
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Why is Proj of any graded ring isomorphic to Proj of a graded ring generated in degree one?

apr 2 10 at 6:20 Brian Jurgelewicz 106●1

 
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Prime avoidance in adjacent degrees

feb 11 11 at 12:29 Qing Liu 8,585●17●26

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Is Krull dimension non-increasing along ring epimorphisms?

jan 16 11 at 3:54 Daniel Litt 8,179●2●25●49

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Why is (line bundle, appropriate rational section) not a standard kind of divisor?

jul 30 at 16:12 Will Chen 889●1●7

 
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Scheme-theoretic account of why every variety embeds in a complete variety

mar 1 11 at 11:04 Leo Alonso 2,310●7●11

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What is known about the “moduli space of morphisms” $X \to Y$?

nov 5 10 at 2:19 Charles Staats 4,059●1●19●45

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Is the blowup of a normal scheme necessarily normal?

sep 4 10 at 23:12 Karl Schwede 11.4k●1●14●35

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460
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Small neighborhoods of singularities on varieties

jul 23 11 at 11:25 A. Lerario 103●4

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462
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An effective way to tell if the saturation of a homogeneous ideal is the irrelevant ideal

feb 8 12 at 6:04 Charles 4,159●8●26

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Can we make Buchberger’s algorithm faster for a given ideal if we are allowed to vary the monomial order?

jul 18 11 at 23:08 Joseph O'Rourke 43.3k●1●49●214

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