151

Questions
votes newest views recent
1
5
votes
0
answers
57
views

In cell-decomposed manifolds, how easy is it to arrange for the tubular neighborhood of a diagonal to contract onto the diagonal?

1d ago Theo Johnson-Freyd 22.2k●2●27●110

2
9
votes
2
answers
380
views

When does an even-dimensional manifold fiber over an odd-dimensional manifold?

may 6 at 17:51 John Klein 7,129●19●28

1
1
vote
2
answers
176
views

Does a connected manifold with vanishing Euler characteristic admit a nowhere-vanishing vector field?

may 5 at 18:53 Anton Petrunin 16.4k●41●110

3
12
votes
2
answers
376
views

Are there results from gauge theory known or conjectured to distinguish smooth from PL manifolds?

mar 18 at 5:21 unknown (google) 5,530●6●29

3
7
votes
2
answers
373
views

How many flat connections has a line bundle in algebraic geometry?

mar 9 at 3:06 Piotr Achinger 3,155●6●18

1
5
votes
0
answers
208
views

Exactness is often an open condition. How often?

feb 10 at 5:54 Theo Johnson-Freyd 22.2k●2●27●110

1
5
votes
2
answers
177
views

When is a solution to an ODE determined by its average value?

jan 25 at 17:51 Liviu Nicolaescu 11.3k●1●20●33

5
7
votes
1
answer
232
views

Is there an algebraic “derived mapping space” construction that encompasses both Hochschild homology and loop spaces of non-simply-connected spaces?

dec 13 at 0:36 David Ben-Zvi 12.6k●1●28●50

3
8
votes
1
answer
138
views

Are annihilation modules in the quantum torus necessarily principal?

nov 27 at 18:01 Mariano Suárez-Alvarez 30.6k●7●68●153

 
2
votes
1
answer
100
views

Can I bound the degree of a contracting homotopy in an exact filtered complex?

nov 5 at 3:36 Tom Goodwillie 26.6k●2●58●110

1 2 3 4 5 … 16 next