User Georges Elencwajg

4 votes

What are examples illustrating the usefulness of Krull (i.e., rank > 1) valuations?

answered Jan 19, 2010 at 9:35

4 votes

Nonsingular/Normal Schemes

answered Jan 22, 2010 at 20:50

3 votes

Individual mathematical objects whose study amounts to a (sub)discipline?

answered Dec 12, 2010 at 1:35

3 votes

How to prove these two rings are not isomorphic

answered Jul 8, 2010 at 12:20

3 votes

What is the link between sections and sections? (schemes)

answered Aug 31, 2010 at 23:05

3 votes

practical applications of eigenvalues and eigenvectors

answered Sep 29, 2010 at 16:13

3 votes

Is there a connected non-affine scheme $S$ such that it is the union of rings of integers of number fields?

answered Sep 25, 2011 at 21:03

3 votes

Exotic principal ideal domains

answered Feb 24, 2011 at 17:13

3 votes

An example of a complex manifold without a finite open cover

answered Mar 20, 2011 at 21:56

3 votes

Isomorphism problem for finite dimensional central division algebras over a function field in two indeterminates.

answered May 12, 2011 at 20:16

3 votes

Finding the degree of minimal polynomials

answered Apr 17, 2011 at 11:45

3 votes

determinant of normal bundle ample

answered Feb 17, 2014 at 12:29

2 votes

Does the sheaf $\mathcal{O}^*$ on a complex manifold have an acyclic cover?

answered Jul 18, 2020 at 15:24

2 votes

Localizations as free, finite rank modules

answered Jul 9, 2010 at 10:43

2 votes

Accepted

The origin of the satisfy-verify mixup

answered Jun 4, 2010 at 0:42

2 votes

Interesting examples of vacuous / void entities

answered Nov 14, 2010 at 3:28

2 votes

When is the radical of the extension of a prime ideal prime?

answered Feb 4, 2010 at 22:41

2 votes

Extensions of fields with lots of symmetry

answered Feb 26, 2010 at 15:07

2 votes

Complex analytic vs algebraic families of manifolds

answered Apr 28, 2010 at 8:41

2 votes

Etale coverings of certain open subschemes in Spec O_K

answered Apr 28, 2010 at 22:46

2 votes

Reference request: is the punctual Hilbert scheme irreducible?

answered Apr 4, 2010 at 8:59

2 votes

When to pick a basis?

answered Nov 8, 2009 at 19:13

2 votes

What is etale descent?

answered Nov 28, 2009 at 2:08

2 votes

When can we prove constructively that a ring with unity has a maximal ideal?

answered Nov 28, 2009 at 15:30

1 vote

morphism of schemes that is closed at topological space level

answered Mar 19, 2010 at 13:28

1 vote

Compactness and Covering Spaces

answered Jul 16, 2010 at 11:26

1 vote

Accepted

Jokes in Miles Reid's 'Undergraduate Algebraic Geometry'

answered Sep 24, 2010 at 20:23

0 votes

Is the universal covering of an open subset of $\mathbb{R}^n$ diffeomorphic to an open subset of $\mathbb{R}^n$ ?

answered Mar 15, 2010 at 0:45

-1 votes

Line bundles with complex connection

answered Jan 22, 2012 at 10:24

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239 Answers

What are examples illustrating the usefulness of Krull (i.e., rank > 1) valuations?

Nonsingular/Normal Schemes

Individual mathematical objects whose study amounts to a (sub)discipline?

How to prove these two rings are not isomorphic

What is the link between sections and sections? (schemes)

practical applications of eigenvalues and eigenvectors

Is there a connected non-affine scheme $S$ such that it is the union of rings of integers of number fields?

Exotic principal ideal domains

An example of a complex manifold without a finite open cover

Isomorphism problem for finite dimensional central division algebras over a function field in two indeterminates.

Finding the degree of minimal polynomials

determinant of normal bundle ample

Does the sheaf $\mathcal{O}^*$ on a complex manifold have an acyclic cover?

Localizations as free, finite rank modules

The origin of the satisfy-verify mixup

Interesting examples of vacuous / void entities

When is the radical of the extension of a prime ideal prime?

Extensions of fields with lots of symmetry

Complex analytic vs algebraic families of manifolds

Etale coverings of certain open subschemes in Spec O_K

Reference request: is the punctual Hilbert scheme irreducible?

When to pick a basis?

What is etale descent?

When can we prove constructively that a ring with unity has a maximal ideal?

morphism of schemes that is closed at topological space level

Compactness and Covering Spaces

Jokes in Miles Reid's 'Undergraduate Algebraic Geometry'

Is the universal covering of an open subset of $\mathbb{R}^n$ diffeomorphic to an open subset of $\mathbb{R}^n$ ?

Line bundles with complex connection