Laurent Moret-Bailly

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Name	Laurent Moret-Bailly
Member for	2 years
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Location	Rennes, France
Age	61

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279

304

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169

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75k

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Examples of common false beliefs in mathematics. [closed]

apr 16 at 19:41 Benjamin Steinberg 10.7k●1●14●49

122

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12k

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Free, high quality mathematical writing online? [closed]

books big-list

jan 24 12 at 21:25 Leandro Vendramin 891●1●4●12

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Can a non-surjective polynomial map from an infinite field to itself miss only finitely many points?

fields polynomials ac.commutative-algebra ra.rings-and-algebras surjective

dec 1 09 at 5:35 Greg Kuperberg 36.3k●2●116●179

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What are the epimorphisms in the category of schemes?

ag.algebraic-geometry ct.category-theory schemes

mar 13 11 at 9:30 Mikhail Bondarko 5,876●1●4●21

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848

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Can a coequalizer of schemes fail to be surjective?

ag.algebraic-geometry geometric-invariant-theor examples

apr 3 11 at 19:15 Laurent Moret-Bailly 7,296●19●29

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249

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Can a single DVR witness all specializations on a variety?

ag.algebraic-geometry ac.commutative-algebra valuative-criteria

oct 26 10 at 0:41 Anton Geraschenko♦♦ 13.7k●3●48●108

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When are dual modules free?

ac.commutative-algebra

jan 8 10 at 20:52 Greg Muller 7,447●1●21●52

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450

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Is being a coequalizer a target-local property in schemes? (answered: no, and no)

ag.algebraic-geometry ct.category-theory

apr 12 11 at 6:52 Laurent Moret-Bailly 7,296●19●29

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answer

315

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Maps that admit local sections through each ‘point’ in the domain

ct.category-theory ag.algebraic-geometry dg.differential-geometry grothendieck-topology

oct 20 10 at 6:18 Bjørn Kjos-Hanssen 2,468●1●9●18

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