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Bernie
  • Member for 9 years, 8 months
  • Last seen more than a month ago
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28
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12
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Top posts
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question
6
Are there curves of genus 2 with real multiplication by a non-maximal order?
Aug 28, 2017
question
5
Are there primitive quartic CM fields whose norms of units give all totally positive units of the real quadratic subfield?
Jun 28, 2017
question
4
Modules over an Azumaya algebra and modules over the associated Brauer-Severi variety
Sep 4, 2015
question
4
Can relative flatness of a sheaf be tested using (faithfully) flat morphisms?
Sep 28, 2015
question
4
Relative tangent bundle of a twisted Grassmann variety
Aug 9, 2016
question
4
Existence of regular conic bundles with a given discriminant divisor
Mar 16, 2017
question
4
Is the Gysin map in etale cohomology compatible with taking function fields?
Aug 8, 2017
question
4
Can Kummer surfaces coming from the same abelian surface be Cremona equivalent / isomorphic?
Sep 21, 2017
question
3
Which sheaves on a projective bundle are flat over the base scheme?
Oct 5, 2015
question
3
Can one control the ramification of a Brauer class under birational morphisms?
Nov 16, 2015
Top network posts
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7
A torsion-free sheaf of rank 1 on a surface
6
Why do some curves not admit etale coverings?
5
Is the total space of a vector bundle over an irreducible scheme irreducible?
5
Determinant of a coherent sheaf over a smooth projective variety