Marco Golla's user avatar
Marco Golla's user avatar
Marco Golla's user avatar
Marco Golla
  • Member for 13 years, 1 month
  • Last seen this week
74 votes

Proofs without words

25 votes
Accepted

The Jones polynomial at specific values of $t$

22 votes

Manifold embedded in $R^{n+1}$ with a submanifold that doesn't embed in $R^n$

20 votes
Accepted

Example of homeomorphism of $3$-manifolds

20 votes
Accepted

Does there exist a closed manifold with vanishing reduced rational cohomology but nonvanishing odd torsion cohomology?

18 votes
Accepted

Morse number of the Poincaré homology sphere

18 votes
Accepted

Obtain 4-manifolds by repeating surgeries of submanifolds in $S^4$

17 votes
Accepted

Can Khovanov homology have arbitrarily large torsion?

17 votes
Accepted

Simple question on Kirby move

17 votes
Accepted

4-dimensional cohomology $\mathbb{CP}^2$'s

13 votes
Accepted

Higher homotopy groups of irreducible 3-manifolds

12 votes

Behavior of genus function on a 4-manifold for sums

12 votes

Is there a closed non-smoothable 4-manifold with zero Euler characteristic?

12 votes
Accepted

Distance between two knots

12 votes
Accepted

Does a Trivial Tangent Bundle Induce a Multiplication?

11 votes

How to show whether a given knot and its mirror image are the same or not?

11 votes

Does every embedded 2-sphere in $\mathbb{R}^n$ bound an embedded ball?

10 votes

Is the Lisca-Matic bound (aka slice-Bennequin bound) strictly stronger than the Bennequin bound?

10 votes
Accepted

Two surfaces in a 4-manifold whose algebraic intersection number is zero

10 votes

Presentations of exotic 4-manifolds

9 votes
Accepted

Lower bounds for Betti numbers of a manifold given its boundary?

9 votes

Area of a smooth complex projective curve

9 votes
Accepted

Are two slice surfaces with minimal genus isotopic?

9 votes

Is Rasmussen's s-invariant of a knot an invariant of a 4-manifold?

9 votes

Link of a singularity

9 votes
Accepted

What is the easiest way to compute Ozsváth-Szabó tau invariant of a knot?

9 votes
Accepted

Dimension of two homotopy equivalent manifolds

9 votes
Accepted

symplectic form with partition on unity

9 votes

Automorphism of Smooth manifolds

8 votes

$0$-surgeries on trefoil and figure-eight

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