User Greg Stevenson

4 votes

Accepted

Is there a version of the valuative criteria for separateness/properness for varieties?

answered Oct 17, 2009 at 5:39

3 votes

Are good introductory/pedagogical problems in algebraic geometry rare?

answered Oct 15, 2009 at 22:04

3 votes

Are submersions of differentiable manifolds flat morphisms?

answered Oct 25, 2009 at 1:19

3 votes

Quotients of Schemes by Free Group Actions

answered Oct 21, 2009 at 3:18

3 votes

Is there a free digraph associated to a graph?

answered Oct 21, 2009 at 12:08

3 votes

Accepted

Looking for reference talking about torsion theory on coherent sheaves on projective space

answered Mar 8, 2010 at 1:14

3 votes

Derived category with total cohomology finite dimensional: is there a better name for it?

answered Nov 22, 2009 at 21:24

3 votes

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An application of the Künneth formula in the proof of the theorem of the cube

answered Nov 16, 2009 at 3:52

3 votes

Applications of classifying thick subcategories

answered Jul 20, 2010 at 12:06

3 votes

Accepted

Sheaf cohomology and torsion

answered Aug 4, 2010 at 8:36

2 votes

Is K(R-Mod) compactly generated when R is an artin algebra?

answered Jul 31, 2010 at 5:26

2 votes

Dense section of sheaves of modules

answered Nov 18, 2009 at 20:46

2 votes

Integrally closed factor rings and projective modules

answered Nov 7, 2009 at 0:49

2 votes

When are dual modules free?

answered Nov 8, 2009 at 6:01

2 votes

Morita equivalence and moduli problems

answered Nov 22, 2009 at 2:32

2 votes

When is a localization of a commutative ring finitely generated as an algebra?

answered Nov 22, 2009 at 9:00

2 votes

exactness in triangulated categories is reflected by hom-functor

answered Jan 2, 2010 at 1:00

2 votes

Higher vanishing cycles

answered Oct 18, 2009 at 2:02

2 votes

Morphisms of (quasi-)projective varieties

answered Oct 20, 2009 at 10:08

2 votes

Separators in the Category of Groups

answered Nov 3, 2009 at 2:24

2 votes

What kind of operations does the Tall-Wraith monoid encode?

answered Oct 30, 2009 at 2:12

1 vote

When does direct image with proper support have a right adjoint?

answered Nov 1, 2009 at 10:21

1 vote

What is the "right" definition of the free abelian group on a set?

answered Nov 22, 2009 at 23:26

1 vote

Is projectiveness a Zariski-local property of modules? (Answered: Yes!)

answered Nov 24, 2009 at 21:43

1 vote

Accepted

How to make commutative algebraic groups strongly dualizable?

answered Nov 3, 2009 at 22:26

0 votes

Analogues of the Weierstrass p function for higher genus compact Riemann surfaces

answered Oct 27, 2009 at 22:30

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86 Answers

Is there a version of the valuative criteria for separateness/properness for varieties?

Are good introductory/pedagogical problems in algebraic geometry rare?

Are submersions of differentiable manifolds flat morphisms?

Quotients of Schemes by Free Group Actions

Is there a free digraph associated to a graph?

Looking for reference talking about torsion theory on coherent sheaves on projective space

Derived category with total cohomology finite dimensional: is there a better name for it?

An application of the Künneth formula in the proof of the theorem of the cube

Applications of classifying thick subcategories

Sheaf cohomology and torsion

Is K(R-Mod) compactly generated when R is an artin algebra?

Dense section of sheaves of modules

Integrally closed factor rings and projective modules

When are dual modules free?

Morita equivalence and moduli problems

When is a localization of a commutative ring finitely generated as an algebra?

exactness in triangulated categories is reflected by hom-functor

Higher vanishing cycles

Morphisms of (quasi-)projective varieties

Separators in the Category of Groups

What kind of operations does the Tall-Wraith monoid encode?

When does direct image with proper support have a right adjoint?

What is the "right" definition of the free abelian group on a set?

Is projectiveness a Zariski-local property of modules? (Answered: Yes!)

How to make commutative algebraic groups strongly dualizable?

Analogues of the Weierstrass p function for higher genus compact Riemann surfaces