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HYYY
  • Member for 14 years, 3 months
5 votes
4 answers
3k views

Number of non-Abelian groups of order $2^n$

28 votes
4 answers
6k views

Is there any way to rewrite a partial differential equation using language of differential forms, tensors, etc?

3 votes
0 answers
442 views

Website for temporary instructor/lecturer positions [closed]

1 vote
2 answers
314 views

Do we have a pullback operation on simplicial chains?

11 votes
3 answers
3k views

What's the current state of Yang–Mills mass gap question?

4 votes
3 answers
919 views

Questions on Discrete Exterior Calculus in numerical computing

3 votes
2 answers
572 views

About topological B model

1 vote
1 answer
322 views

Where can I find material that introduces homotopy (co)invariants?

3 votes
1 answer
196 views

The discrete theory of compressible fluids dynamics

1 vote
1 answer
2k views

Software to numerically solve partial differential equation

4 votes
2 answers
884 views

Deligne-Mumford space defined in complex geometry category

1 vote
2 answers
1k views

homotopy between solutions of Maurer-Cartan equation

1 vote
2 answers
521 views

Why is this a local constant sheaf

2 votes
1 answer
1k views

Question related to the moduli space of Riemann surfaces and a fibration

4 votes
1 answer
786 views

Homology dimension of the mapping class group of a surface with boundary

4 votes
0 answers
701 views

Spectral sequence for reduced homology

2 votes
1 answer
376 views

What's the chain level Gromov-Witten theory

3 votes
1 answer
775 views

different "derived structure" in derived algebraic geometry

9 votes
1 answer
2k views

website for jobs in applied or industrial mathematics (or financial math) [closed]

7 votes
2 answers
2k views

Is there any disadvantage from non-academic job turn to academic job in math

6 votes
1 answer
826 views

Computation of homology groups of $M_{g,n}$

7 votes
4 answers
1k views

To differently gluing of two Riemann surfaces with boundary we get different surfaces

0 votes
1 answer
610 views

algebraic geometry and complex geometry in dimension 2

5 votes
1 answer
959 views

How can we show the spaces $M_{g}(n)$ and $M_{g, n}$ are homotopy equivalent?

4 votes
1 answer
813 views

Do the virtual fundamental classes satisfy functorial properties?

2 votes
2 answers
864 views

Why are people interested in defining GW invariant in algebraic geometry category

0 votes
0 answers
330 views

Is there a reference showing that the space $\bar{M_{g,n}}$ is a closed oriented orbifold and it is hausdorff

5 votes
1 answer
726 views

Is it possible a variety be a manifold with boundary

2 votes
0 answers
742 views

a question on Costello's theorem

7 votes
2 answers
2k views

recommendation letter for teaching [closed]