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Oblomov
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18 Questions

Score Activity Newest Views
41 votes
4 answers
4k views

When is a submanifold of $\mathbf R^n$ given by global equations?

31 votes
3 answers
4k views

Algebras over the little disks operad

31 votes
6 answers
2k views

Bass' stable range of $\mathbf Z[X]$

24 votes
2 answers
961 views

Proportion of irreducible polynomials $P$ such that $\mathbf Z[X]/(P)$ is the ring of integers of $\mathbf Q[X]/(P)$

17 votes
1 answer
1k views

Is a finite CW complex minus a point still homotopy equivalent to a finite CW complex?

13 votes
2 answers
529 views

Stabilization of representation of the symmetric group

12 votes
2 answers
874 views

Are spaces of holomorphic maps manifolds?

10 votes
1 answer
607 views

Multiple zeta values at negative integers

8 votes
0 answers
533 views

Gysin exact sequence for a singular subvariety

8 votes
2 answers
538 views

Easiest way to distinguish $E_8 \oplus E_8$ from $E_{16}$

8 votes
1 answer
1k views

Given a positive-definite integral unimodular Gram matrix, how to find a basis of the associated lattice (over $\mathbf Q$)?

7 votes
2 answers
500 views

Algebraic proof without using comparison theorem for étale cohomology

5 votes
1 answer
208 views

Units of $\mathbf Z[X,Y]/(P(X,Y))$

4 votes
0 answers
453 views

Bounding the degrees in a Bézout relation for integer polynomials

2 votes
0 answers
1k views

Recognition principle

2 votes
0 answers
194 views

Comparing ideal class numbers of different orders

2 votes
1 answer
88 views

Does a polynomial $P(X,Y)$ that specializes to a polynomial $P(x_0,Y)$ with distinct roots in $\overline{k}$ have distincts roots in $\overline{k(X)}$

1 vote
0 answers
215 views

Concrete solution to the (oriented) Oberwolfach problem with one table