64

Questions
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Are representations of a linearly reductive group discretely parameterized?

feb 21 11 at 15:32 David Ben-Zvi 12.6k●1●28●50

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Can ⨁_I A be isomorphic to ∏_I A for infinite I?

dec 16 10 at 10:48 François Brunault 7,389●1●13●35

 
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If a representation has enough reductive stabilizers, is it a direct sum of characters?

apr 5 11 at 16:10 David Speyer 55.1k●3●102●236

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When is fiber dimension upper semi-continuous?

mar 13 at 23:03 Charles Staats 4,059●1●19●45

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What is the universal property of normalization?

nov 17 10 at 19:47 roy smith 4,951●34●28

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Is every subgroup of an algebraic group a stabilizer for some action?

dec 22 09 at 11:28 Thanos D. Papaïoannou 1,589●1●6●18

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Reference request: is the punctual Hilbert scheme irreducible?

apr 8 10 at 9:56 MartinG 369●1●4

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What does the nilpotent cone represent?

jan 8 10 at 19:40 Ben Webster♦ 20.7k●1●44●114

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Example where you *need* non-DVRs in the valuative criteria

oct 19 09 at 4:29 ulrich 6,750●1●13●23

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Is $\mathbb{A}²$ the universal smooth scheme which is a finite cover of $\mathbb{A}²/μ₂$?

jun 23 11 at 4:02 Anton Geraschenko♦♦ 13.7k●3●48●108

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