User Georges Elencwajg

11 votes

universal property of stein factorization

answered Jul 12, 2011 at 19:24

11 votes

Is the composition of two bundle projections necessarily a bundle projection?

answered Sep 6, 2011 at 0:16

10 votes

Notable math from those without math PhDs

answered Sep 4, 2011 at 8:46

10 votes

What is the "strongest" non-local property of a ring/module that is true of all localizations at maximal ideals?

answered Oct 23, 2011 at 12:55

10 votes

Accepted

Coherent Sheaves on Noetherian schemes

answered Jan 15, 2012 at 20:08

10 votes

Accepted

Basic question about branch points on Riemann surfaces

answered Apr 5, 2011 at 13:03

10 votes

Accepted

Reference for the converse of Cartan's Theorem B

answered Apr 24, 2012 at 17:53

10 votes

When does the sheaf cohomology of a topological space vanish?

answered Apr 13, 2013 at 12:37

10 votes

Who uses radicial morphisms?

answered Sep 14, 2014 at 20:57

10 votes

Connected complement manifold

answered Apr 8, 2015 at 20:00

10 votes

Any reference on multilinear algebra

answered Mar 8, 2010 at 22:23

9 votes

Non-integral scheme having integral local rings

answered Dec 30, 2009 at 2:20

9 votes

Characterisation for separable extension of a field

answered Nov 18, 2009 at 22:41

9 votes

Accepted

Cyclic extensions

answered May 14, 2010 at 14:29

9 votes

Accepted

References on Moishezon spaces in English/French

answered Jan 11, 2011 at 11:40

9 votes

Motivating the de Rham theorem

answered Oct 26, 2010 at 18:03

9 votes

In what sense is the étale topology equivalent to the Euclidean topology?

answered Apr 5, 2011 at 10:03

9 votes

Are infinite dimensional constructions needed to prove finite dimensional results?

answered Feb 17, 2011 at 20:32

9 votes

Accepted

Grothendieck group for projective space over the dual numbers

answered Oct 4, 2011 at 12:37

8 votes

Which areas of arithmetic algebraic geometry can be learned as "black boxes" and are there any references where they are treated as such?

answered Feb 16, 2011 at 10:29

8 votes

Picard Group of Projective Bundle over an Integral scheme

answered Apr 8, 2011 at 19:09

8 votes

algebraic de Rham cohomology of singular varieties

answered Sep 9, 2017 at 22:38

8 votes

What is the right definition of the Picard group of a commutative ring?

answered Mar 26, 2018 at 18:36

8 votes

What are the rational functions on a noetherian affine scheme?

answered Mar 28, 2022 at 23:29

8 votes

Is being finitely generated a local property?

answered Jan 13, 2011 at 23:49

8 votes

Comprehensive and self-contained treatment of Algebraic Geometry using Functor of Points approach

answered Jan 19, 2011 at 12:53

8 votes

Cohomology of Structure Sheaves: Algebraic, Constructible and more

answered Jan 24, 2011 at 9:01

8 votes

Topology on the set of linear subspaces

answered Jan 9, 2011 at 19:14

8 votes

Seeking Noetherian normal domain with vanishing Picard group but not a UFD

answered May 24, 2010 at 10:44

8 votes

In Diff, are the surjective submersions precisely the local-section-admitting maps?

answered Sep 28, 2010 at 13:32

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239 Answers

universal property of stein factorization

Is the composition of two bundle projections necessarily a bundle projection?

Notable math from those without math PhDs

What is the "strongest" non-local property of a ring/module that is true of all localizations at maximal ideals?

Coherent Sheaves on Noetherian schemes

Basic question about branch points on Riemann surfaces

Reference for the converse of Cartan's Theorem B

When does the sheaf cohomology of a topological space vanish?

Who uses radicial morphisms?

Connected complement manifold

Any reference on multilinear algebra

Non-integral scheme having integral local rings

Characterisation for separable extension of a field

Cyclic extensions

References on Moishezon spaces in English/French

Motivating the de Rham theorem

In what sense is the étale topology equivalent to the Euclidean topology?

Are infinite dimensional constructions needed to prove finite dimensional results?

Grothendieck group for projective space over the dual numbers

Which areas of arithmetic algebraic geometry can be learned as "black boxes" and are there any references where they are treated as such?

Picard Group of Projective Bundle over an Integral scheme

algebraic de Rham cohomology of singular varieties

What is the right definition of the Picard group of a commutative ring?

What are the rational functions on a noetherian affine scheme?

Is being finitely generated a local property?

Comprehensive and self-contained treatment of Algebraic Geometry using Functor of Points approach

Cohomology of Structure Sheaves: Algebraic, Constructible and more

Topology on the set of linear subspaces

Seeking Noetherian normal domain with vanishing Picard group but not a UFD

In Diff, are the surjective submersions precisely the local-section-admitting maps?