Simon Rose's user avatar
Simon Rose's user avatar
Simon Rose's user avatar
Simon Rose
  • Member for 14 years, 4 months
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18 votes

de Rham vs Dolbeault Cohomology

15 votes
Accepted

Is every algebraic $K3$ surface a quartic surface?

13 votes
Accepted

Complex torus, C^n/Λ versus (C*)^n

12 votes

Examples of "Unusual" Classifications

12 votes

Elliptic curves on abelian surface

12 votes

What recent discoveries have amateur mathematicians made?

11 votes
Accepted

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

9 votes
Accepted

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

8 votes

Blackboard rendering of math fonts

8 votes
Accepted

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

8 votes

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

7 votes

Examples in mirror symmetry that can be understood.

7 votes

Triviality of finite fiber bundles

6 votes

What is a branched Riemann surface with cuts?

5 votes

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

5 votes

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

5 votes
Accepted

Meaning of $g_d^r$ in algebraic geometry

5 votes

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

5 votes

Reference request: Equivariant Topology

5 votes
Accepted

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

4 votes
Accepted

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

4 votes
Accepted

Trivial obstructions and virtual fundamental classes

4 votes

A book in topology

4 votes

How to disjoint two cycles with zero intersection?

4 votes

Chord arrangement that avoids confining small or large disks

4 votes

What is ample generator of a Picard group?

4 votes

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

4 votes

Geodesics on spheres are great circles

4 votes
Accepted

Reference request: maps between moduli spaces

3 votes

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