User Simon Rose

18 votes

de Rham vs Dolbeault Cohomology

answered Apr 27, 2012 at 17:04

15 votes

Accepted

Is every algebraic $K3$ surface a quartic surface?

answered Apr 1, 2015 at 13:47

13 votes

Accepted

Complex torus, C^n/Λ versus (C*)^n

answered Apr 6, 2010 at 16:07

12 votes

Examples of "Unusual" Classifications

answered Mar 24, 2011 at 18:48

12 votes

Elliptic curves on abelian surface

answered Nov 3, 2011 at 16:15

12 votes

What recent discoveries have amateur mathematicians made?

answered Nov 21, 2013 at 13:56

11 votes

Accepted

Understanding the definition of the quotient stack $[X/G]$

answered Mar 3, 2014 at 21:47

9 votes

Accepted

Identifying the generating function $ G(a,z) = \sum_{n=0}^{\infty} a^n z^{(n+1)(n+2)/2}. $

answered May 12, 2011 at 19:53

8 votes

Blackboard rendering of math fonts

answered Nov 17, 2009 at 22:26

8 votes

Accepted

Given a normal subgroup N⊆G, when does G contain a subgroup isomorphic to G/N?

answered May 26, 2010 at 16:31

8 votes

What is the meaning of non-Hausdorff spaces in algebraic geometry

answered Jan 4, 2015 at 19:37

7 votes

Examples in mirror symmetry that can be understood.

answered Mar 6, 2011 at 3:00

7 votes

Triviality of finite fiber bundles

answered May 16, 2011 at 1:01

6 votes

What is a branched Riemann surface with cuts?

answered Jul 9, 2013 at 12:49

5 votes

Is the Čech cohomology of an orbifold isomorphic to its singular cohomology?

answered Nov 10, 2016 at 8:04

5 votes

Does $\mathbb C\mathbb P^\infty$ have a group structure?

answered Apr 6, 2016 at 8:47

5 votes

Accepted

Meaning of $g_d^r$ in algebraic geometry

answered Oct 22, 2014 at 9:28

5 votes

What is the quantity 2(handles)+crosscaps called?

answered May 5, 2011 at 20:57

5 votes

Reference request: Equivariant Topology

answered Jan 12, 2012 at 19:34

5 votes

Accepted

$\psi$ class in $\overline{M}_{0,n}$

answered Feb 6, 2012 at 17:50

4 votes

Accepted

What is the geometric point of view of an algebraic line bundle compared to a analytic line bundle?

answered Mar 29, 2012 at 17:36

4 votes

Accepted

Trivial obstructions and virtual fundamental classes

answered Jan 19, 2012 at 1:10

4 votes

A book in topology

answered Dec 19, 2011 at 18:33

4 votes

How to disjoint two cycles with zero intersection?

answered Oct 1, 2011 at 21:39

4 votes

Chord arrangement that avoids confining small or large disks

answered Oct 2, 2011 at 17:21

4 votes

What is ample generator of a Picard group?

answered Dec 20, 2010 at 23:58

4 votes

What's your favorite equation, formula, identity or inequality?

answered Aug 21, 2010 at 16:17

4 votes

Geodesics on spheres are great circles

answered Jan 18, 2010 at 15:37

4 votes

Accepted

Reference request: maps between moduli spaces

answered Apr 28, 2014 at 17:33

3 votes

What does it mean for a Deligne-Mumford stack to have trivial generic stabilizers?

answered Nov 28, 2013 at 2:36

Stack Exchange Network

60 Answers

de Rham vs Dolbeault Cohomology

Is every algebraic $K3$ surface a quartic surface?

Complex torus, C^n/Λ versus (C*)^n

Examples of "Unusual" Classifications

Elliptic curves on abelian surface

What recent discoveries have amateur mathematicians made?

Understanding the definition of the quotient stack $[X/G]$

Identifying the generating function $ G(a,z) = \sum_{n=0}^{\infty} a^n z^{(n+1)(n+2)/2}. $

Blackboard rendering of math fonts

Given a normal subgroup N⊆G, when does G contain a subgroup isomorphic to G/N?

What is the meaning of non-Hausdorff spaces in algebraic geometry

Examples in mirror symmetry that can be understood.

Triviality of finite fiber bundles

What is a branched Riemann surface with cuts?

Is the Čech cohomology of an orbifold isomorphic to its singular cohomology?

Does $\mathbb C\mathbb P^\infty$ have a group structure?

Meaning of $g_d^r$ in algebraic geometry

What is the quantity 2(handles)+crosscaps called?

Reference request: Equivariant Topology

$\psi$ class in $\overline{M}_{0,n}$

What is the geometric point of view of an algebraic line bundle compared to a analytic line bundle?

Trivial obstructions and virtual fundamental classes

A book in topology

How to disjoint two cycles with zero intersection?

Chord arrangement that avoids confining small or large disks

What is ample generator of a Picard group?

What's your favorite equation, formula, identity or inequality?

Geodesics on spheres are great circles

Reference request: maps between moduli spaces

What does it mean for a Deligne-Mumford stack to have trivial generic stabilizers?