User PVAL - MathOverflow

PVAL

Member for 10 years, 7 months
Last seen more than 6 years ago

11 Answers

Score Activity Newest

17 votes

Theorems that led to very successful research programs in Geometry and Topology

answered Jan 5, 2017 at 12:23

15 votes

Simply-connected rational homology spheres

answered Aug 13, 2015 at 17:24

10 votes

Taut foliations and closed leaves

answered Oct 20, 2016 at 0:06

8 votes

Spin^c structures on manifolds with almost complex structure

answered Jun 5, 2016 at 23:34

5 votes

Existence of tubular neighborohoods of locally flat topological embeddings

answered Aug 25, 2015 at 2:49

3 votes

Is $TS^n$ diffeomorphic to an open subset of $\mathbb{R}^{2n}$

answered Jun 16, 2017 at 22:30

3 votes

Ozsváth-Szabó's contact invariant on the Brieskorn sphere $\Sigma(2,3,6m+1)$

answered Oct 19, 2017 at 20:30

2 votes

contact surgery diagram on Brieskorn manifolds

answered Feb 2, 2016 at 0:26

1 vote

Normals along a Sphere

answered Nov 24, 2014 at 23:31

0 votes

A differentiable one-parameter family of codimension 2 subspaces of $\mathbb{C}^n$ cannot fill $\mathbb{C}^n$, right?

answered Jul 8, 2014 at 20:25

0 votes

Can a Hamiltonian perturbation map a submanifold to another?

answered Jun 22, 2016 at 18:42